{"title":"Transmission Parts\/Upgrades","description":null,"products":[{"product_id":"transgo-corvette-2nd-gear-servo-for-4l60e","title":"TRANSGO \"Corvette\" 2nd Gear Servo for 4L60e","description":"\u003cp\u003e\u003cstrong\u003eTRANSGO \"Corvette\" 2nd Gear Servo for 4L60e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe \"Corvette\" servo is an extremely popular economical upgrade for the 4L60e and 4L65e transmissions found in the 1999-2013 GM Trucks (Silverado\/Sierra) that improves shift quality and performance.  Avoid knockoff brands online and ensure you're getting a quality servo kit from a reputable brand.  This also fits 700R4, 4L60e, 4L65e and 4L70e applications from '82-'15.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003cbr\u003eThe TransGo 7-2P servo has the largest 2nd apply surface area of all the original equipment servos. Consequently, this servo provides a shorter, firmer 1-2 shift and with an increased apply area, provides the 2-4 band greater torque capacity in second gear only. Furthermore, the differential area between the band apply area and the release side of the servo piston alters the 3-4 clutch accumulation rate making the 2-3 shift firmer. Finally, this servo is ideal for high-performance applications and is fully compatible with our entire line of SHIFT KIT® Valve Body Repair Kit and Reprogramming Kits™.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCorrects\/Prevents\/Reduces:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSoft 1-2 and 2-3 shift\u003c\/li\u003e\n\u003cli\u003eIncreases torque capacity for 2nd gear\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIncludes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePiston\u003c\/li\u003e\n\u003cli\u003ePiston housing\u003c\/li\u003e\n\u003cli\u003eSmall scarf cut seal\u003c\/li\u003e\n\u003cli\u003eLarge scarf cut seal\u003c\/li\u003e\n\u003cli\u003eBlue O-ring\u003c\/li\u003e\n\u003cli\u003eRed O-ring\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TRANSGO","offers":[{"title":"Default Title","offer_id":44679275544774,"sku":"TGO7-2P","price":42.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2716\/4086\/files\/transgo-transgo-corvette-2nd-gear-servo-for-4l60e-1172261111.jpg?v=1749427828"},{"product_id":"replacement-crush-washers-for-4l60e-an-conversion-fittings","title":"Replacement Crush Washers for 4L60e AN Conversion Fittings (Pair)","description":"\u003cp\u003e\u003cstrong\u003eReplacement Crush Washers for 4L60e AN Conversion Fittings (Pair)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eWe recommend replacing the crush washers anytime the conversion fittings are removed from the transmission case. These washers are correct for replacement of the washers included with our PTFE transmission line sets. \u003c\/p\u003e","brand":"Glenn's Auto Performance","offers":[{"title":"Default Title","offer_id":44918384394438,"sku":"999203","price":8.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2716\/4086\/files\/glenn-s-auto-performance-replacement-crush-washers-for-4l60e-an-conversion-fittings-pair-1190306312.png?v=1756584749"},{"product_id":"sonnax-super-hold-4th-gear-billet-servo-kit-for-4l60e","title":"Sonnax \"Super-Hold\" 4th Gear Billet Servo Kit for 4L60e","description":"\u003cp\u003e\u003cstrong\u003eSonnax \"Super-Hold\" 4th Gear Billet Servo Kit for 4L60e - 77767K\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch1 class=\"part-detail-title\"\u003e\u003cbr\u003e\u003c\/h1\u003e\n\u003cp\u003eSonnax 4th Gear super hold dual servo kit 77767K features 40% more apply surface area for greater holding power in GM 4L60 (700-R4), 4L60-E, 4L65-E and 4L70-E units. Vehicles with these transmissions often exhibit poor 3-4 shift quality and experience band failure in performance applications. Combine this servo kit with Sonnax 2nd gear servo 77911-03K for unmatched holding power and shift performance that's an easy in-vehicle install.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e-Patented dual-piston design with 40% more apply delivers greater holding power\u003c\/p\u003e\n\u003cp\u003e-Upgraded Viton® D-ring seals prevent pressure loss\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eUse with OE “Corvette” or Sonnax 2nd Gear servo assemblies\u003c\/p\u003e","brand":"Sonnax","offers":[{"title":"Default Title","offer_id":46114574401734,"sku":"77767K","price":110.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2716\/4086\/files\/sonnax-sonnax-super-hold-4th-gear-billet-servo-kit-for-4l60e-1250727822.jpg?v=1784758569"},{"product_id":"superior-stl010-surecool-thermostat-bypass-for-14-6l80e-6l90e-and-16-8l90e-transmissions","title":"Superior STL010 SureCool Thermostat Bypass for 14+ 6L80e\/6L90e and 16+ 8L90e Transmissions","description":"\u003cp\u003e\u003cstrong\u003eSuperior STL010 SureCool Thermostat Bypass for 2014+ 6L80e\/6L90e and 2016+ 8L90e Transmissions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis kit allows you to bypass the OEM 194 degree thermostat in the factory 2014+ 6L80e and 6L90e \u0026amp; 2016+ 8L90e transmission cooler line assembly.  If you're installing an aftermarket cooler on your 14+ application, this is a must-have part!  But, it even provides a cooling benefit with the OEM cooler. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eAllows you to re-use the existing GM block w\/ lines and units listed in TSB Bulletin No. 21-NA-199.  Built in safety bypass\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e• Immediate cooler fill.\u003cbr\u003e• Immediate accurate fluid level check without warm-up cycle\u003cbr\u003e• Reduced average operating temperatures by as much as 30%\u003cbr\u003e• Reduced risk of overheat while under load, Increased ATF life.\u003c\/p\u003e","brand":"Superior","offers":[{"title":"Default Title","offer_id":46114629157062,"sku":"STL010","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2716\/4086\/files\/superior-superior-stl010-surecool-thermostat-bypass-for-14-6l80e-6l90e-and-16-8l90e-transmissions-1250727821.jpg?v=1784758508"},{"product_id":"transgo-cooler-flow-bypass-delete-kit-for-6l80-6l90-8l90","title":"TransGo Cooler Flow Bypass Delete Kit for 6L80\/6L90\/8L90","description":"\u003cp\u003e\u003cstrong\u003eTransGo Cooler Flow Bypass Delete Kit for 6L80\/6L90\/8L90 - 6L80-CLR-BYPASS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis kit allows you to delete the OEM 194 degree thermostat in the factory 2014+ 6L80e and 6L90e \u0026amp; 2016+ 8L90e transmission cooler line assembly.  If you're installing an aftermarket cooler on your 14+ application, this is a must-have part!  But, it even provides a cooling benefit with the OEM cooler. \u003c\/p\u003e\n\u003cp\u003eAn easy, no-hassle cost-effective drop-in Cooler Flow Bypass Delete Kit for General Motors 6L80, 6L90, 8L90 and Allison transmissions.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCorrects\/Prevents\/Reduces:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProvides all-time cooler flow regardless of temperature\u003c\/li\u003e\n\u003cli\u003ePrevents overheating\u003c\/li\u003e\n\u003cli\u003eReduces transmission fluid temperature\u003c\/li\u003e\n\u003cli\u003eEliminates thermostatic assembly\u003c\/li\u003e\n\u003cli\u003eAllows you to accurately check fluid level immediately after install without having to wait or go through a warm-up cycle\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIncludes:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCooler bypass plug\u003c\/li\u003e\n\u003cli\u003eO-ring for cooler bypass plug\u003cbr\u003ePin\u003c\/li\u003e\n\u003cli\u003eReplacement O-ring for end cover\u003c\/li\u003e\n\u003cli\u003eSpacer\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TRANSGO","offers":[{"title":"Default Title","offer_id":46114645475526,"sku":"6L80-CLR-BYPASS","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2716\/4086\/files\/transgo-transgo-cooler-flow-bypass-delete-kit-for-6l80-6l90-8l90-1250727820.webp?v=1784758450"},{"product_id":"transgo-hd2-valve-body-shift-kit-for-4l60e-transmissions","title":"TRANSGO HD2 Valve Body Shift Kit for 4L60e Transmissions","description":"\u003cp\u003eThe 4L60E-HD2 Reprogramming Kit fits 1993 to 2015 General Motors vehicles equipped with the 4L60E, 4L65E and 4L70E automatic transmission. Common complaints on this transmission are TCC slip or shudder, code P1870 or P0894, harsh 1-2 shift, double bump shifts, 2-3 flare up, burnt 3-4 clutch plates as well as inconsistent pressure boost problems.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe torque converter clutch regulator valve bore is very prone to wear causing the TCC slip complaints and related code. The TCC slip code leads to the harsh 1-2 upshift as the ECM recognized the TCC slip and commands high line pressure to avoid further TCC slippage and damage. The 3-4 clutch plate failure as well as the 2-3 flare up complaints are caused by an inconsistent pressure boost and poor overall calibration of the shift accumulation system.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures and benefits:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThis TransGo Reprogramming Kit includes valve body, servo, pump and accumulator components and modifications designed to deliver increased durability while providing firm shifts as well as a more efficient TCC apply. It includes components as well as modifications that recalibrates the entire accumulation system, clutch and band feed orifices. These changes work in concert with an aggressive line pressure curve to greatly improve the overall durability and shift feel of the transmission. . Furthermore, the included drop-in USA-made TCC isolator and regulator valve features longer lands which restores the hydraulic integrity of the circuit by utilizing previously unused and therefore unworn areas of their bore. Lastly, on 1993 to 2008, the gear command feature will allow for full gear lever controlled downshifts 3\u003csup\u003erd\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003ethrough 1\u003csup\u003est\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003egear as well as holding manual 1\u003csup\u003est\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eor 2\u003csup\u003end\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003egear to any speed or RPM.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis kit can be installed while the transmission is in the vehicle on\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e1993-2006\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003emodels only without the input speed sensor. 2007 and later models equipped with the input speed sensor require transmission removal. This kit also includes #7-CS\u003cspan\u003e \u003c\/span\u003e3-4 clutch piston return spring kit for the input drum which reduces centrifugal 3-4 clutch apply and failure in 1\u003csup\u003est\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003egear at 5500 RPM or higher, transmission removal required.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCorrects\/Prevents\/Reduces:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eTCC slip or shudder\u003c\/li\u003e\n\u003cli\u003eCode P1870 and P0894\u003c\/li\u003e\n\u003cli\u003eHarsh 1-2 shift\u003c\/li\u003e\n\u003cli\u003eLong soft shifts\u003c\/li\u003e\n\u003cli\u003eDouble bump or slide bump on the 1-2 shift\u003c\/li\u003e\n\u003cli\u003e2-3 flare up\u003c\/li\u003e\n\u003cli\u003e2-4 band failure\u003c\/li\u003e\n\u003cli\u003eBurnt 3-4 clutch plates\u003c\/li\u003e\n\u003cli\u003eBurnt forward and low\/reverse clutch plates\u003c\/li\u003e\n\u003cli\u003ePump slide and valve bore wear\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eIncludes:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eSecond servo piston spring, two shims and two O-rings\u003c\/li\u003e\n\u003cli\u003e(2) 1-2 accumulator springs, spring seat and three spacers\u003c\/li\u003e\n\u003cli\u003e3-2 Downshift valve spring\u003c\/li\u003e\n\u003cli\u003eActuator feed limit valve spring\u003c\/li\u003e\n\u003cli\u003e(2) 1-2 accumulator valve springs\u003c\/li\u003e\n\u003cli\u003eUSA-made hardened steel 1-2 shift valve and spacer\u003c\/li\u003e\n\u003cli\u003eLow valve spring\u003c\/li\u003e\n\u003cli\u003eUSA-made hardened TCC regulator and isolator valve, spring and installation bolt\u003c\/li\u003e\n\u003cli\u003e(2) Pressure regulator valve springs and spacer\u003c\/li\u003e\n\u003cli\u003e.500” boost valve, bushing and snap ring\u003c\/li\u003e\n\u003cli\u003eEPC screen wire spacer and oversized 1-2 checkball\u003c\/li\u003e\n\u003cli\u003e(2) Drill bits\u003c\/li\u003e\n\u003cli\u003e(2) Reverse input piston orifice cup plugs\u003c\/li\u003e\n\u003cli\u003e3-4 accumulator spring\u003c\/li\u003e\n\u003cli\u003e(2) Valve body gaskets\u003c\/li\u003e\n\u003cli\u003ePan gasket\u003c\/li\u003e\n\u003cli\u003e3-4 clutch return springs and orifice capsule\u003c\/li\u003e\n\u003cli\u003eForward clutch return springs and installation washer\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TRANSGO","offers":[{"title":"Default Title","offer_id":46114675654854,"sku":"4L60E-HD2","price":149.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2716\/4086\/files\/transgo-transgo-hd2-valve-body-shift-kit-for-4l60e-transmissions-1250727817.webp?v=1784758330"},{"product_id":"transgo-hd2-valve-body-shift-kit-for-4l80e-transmissions","title":"TRANSGO HD2 Valve Body Shift Kit for 4L80e Transmissions","description":"\u003cp\u003eThe 4L80E Performance Reprogramming Kit fits 1991 to 2013 General Motors vehicles equipped with 4L80E and 4L85E automatic transmissions.  Common complaints on these transmissions are no upshifts, soft 2-3 shifts, burnt direct frictions, broken hard parts as well as gear ratio and solenoid performance codes.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe boost valve assembly is notorious for wear causing both low pressure as well as runaway boost pressure. With the low boost pressure problem, the resulting complaints are a soft 2-3 shift, direct clutch failure as well as the gear ratio and solenoid performance codes. On the other hand, the runaway boost pressure problem can result in a costly broken case, direct drum and piston failure.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures and benefits:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe TransGo 4L80E Performance Reprogramming Kit includes valve body, pump and internal components that are calibrated to work in concert with an elevated line pressure curve that will greatly improve the overall durability and shift feel of the transmission. Also, the laminated triple separator plate provides dual feed for the 3\u003csup\u003erd\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003egear clutch without having to dismantle the transmission. Dual feeding the 3\u003csup\u003erd\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003egear clutch triples the torque capacity of the 3\u003csup\u003erd\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003egear clutch which is the Achilles heel of this transmission. In addition, the included highly improved wide land design boost valve and bushing resists wear so that pressure regulation functions consistently for the long haul. Lastly, the EPC boost pressure relief valve system provided helps protect against accidental runaway boost pressure to stop the case and direct drum failure.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCorrects\/Prevents\/Reduces:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eHigh pressure parts breakage\u003c\/li\u003e\n\u003cli\u003eSoft 2-3 shift\u003c\/li\u003e\n\u003cli\u003eBurnt direct clutch\u003c\/li\u003e\n\u003cli\u003eSlow 3-2 downshift\u003c\/li\u003e\n\u003cli\u003eNo upshifts\u003c\/li\u003e\n\u003cli\u003eHarsh 1-2 shift\u003c\/li\u003e\n\u003cli\u003eLow pressure due to solenoid filter breakup\u003c\/li\u003e\n\u003cli\u003eCodes 39, 68, 85, 86, 87, P0731, P0732, P0733, P0734, P0751, P0756, P0894 and P1870\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eIncludes:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eHeavy duty intermediate case snap ring\u003c\/li\u003e\n\u003cli\u003e(2) Accumulator valve springs, end plug and O-ring\u003c\/li\u003e\n\u003cli\u003eActuator filter tapered plug, O-ring, spring and end plug\u003c\/li\u003e\n\u003cli\u003eRelief valve system plate, valve, spring, e-clip and nuts\u003c\/li\u003e\n\u003cli\u003eLaminated triple separator plate\u003c\/li\u003e\n\u003cli\u003eValve body and accumulator body gaskets\u003c\/li\u003e\n\u003cli\u003e(2) Drill bits\u003c\/li\u003e\n\u003cli\u003e3\u003csup\u003erd\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eaccumulator spring\u003c\/li\u003e\n\u003cli\u003eUSA-made hardened boost valve and bushing\u003c\/li\u003e\n\u003cli\u003ePressure regulator valve spacer, washer, springs and snap ring\u003c\/li\u003e\n\u003cli\u003eNew stronger 4\u003csup\u003eth\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003efeed bolt and washer\u003c\/li\u003e\n\u003cli\u003e1-2 accumulator spring\u003c\/li\u003e\n\u003cli\u003e(16) Direct clutch return springs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TRANSGO","offers":[{"title":"Default Title","offer_id":46114691875014,"sku":"4L80E-HD2","price":184.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2716\/4086\/files\/transgo-transgo-hd2-valve-body-shift-kit-for-4l80e-transmissions-1250727815.webp?v=1784758273"},{"product_id":"sonnax-super-hold-2nd-gear-billet-servo-kit-for-4l60e","title":"Sonnax \"Super-Hold\" 2nd Gear Billet Servo Kit for 4L60e","description":"\u003cp\u003e\u003cstrong\u003eSonnax \"Super-Hold\" 2nd Gear Billet Servo Kit for 4L60e - 77911-03K\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch1 class=\"part-detail-title\"\u003e\u003cbr\u003e\u003c\/h1\u003e\n\u003cdiv class=\"spaced-vertical\"\u003e\n\u003cp\u003eSonnax 2\u003csup\u003end\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003egear super hold servo kit 77911-03K for GM 4L60 (700-R4), 4L60-E, 4L65-E and 4L70-E transmissions delivers 18% more apply area than the “Corvette” servo (largest OE). It's the perfect choice for performance applications when a larger-than-OE servo is desired, and its unique design avoids the timing flaws and excessive shock loads found in other aftermarket servos. Combine this servo kit with Sonnax 4\u003csup\u003eth\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003egear servo\u003cspan\u003e 77767K\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003efor unmatched holding power and shift performance that's an easy in-vehicle install.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e18% More apply area than OE \"Corvette\" servo\u003c\/li\u003e\n\u003cli\u003eMaximizes holding power in 2nd gear with more positive 1-2 and 2-3 shifts\u003c\/li\u003e\n\u003cli\u003eUpgraded dual Viton\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eseals ensure positive band apply\/release and eliminate cross leaks\u003c\/li\u003e\n\u003cli\u003eChromoly steel apply pin is longer than longest OE pin and features added seals to reduce leakage of 3rd gear pressure\u003c\/li\u003e\n\u003cli\u003eServo and piston made from durable billet aluminum\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"part-accordion cb spaced-vertical\"\u003e\n\u003cdiv id=\"components\"\u003e\n\u003cstrong\u003e\u003clabel for=\"components-panel\"\u003eContents\u003c\/label\u003e\u003c\/strong\u003e\n\u003cdiv class=\"accordion-content\"\u003e\n\u003cul\u003e\n\u003cli\u003e2nd Gear Piston\u003c\/li\u003e\n\u003cli\u003eSeparator\u003c\/li\u003e\n\u003cli\u003eApply Pin\u003c\/li\u003e\n\u003cli\u003eD-Rings (2)\u003cspan\u003e \u003c\/span\u003e\u003ci\u003eSmall\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003eD-Rings (2)\u003cspan\u003e \u003c\/span\u003e\u003ci\u003eLarge\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003eO-Ring\u003cspan\u003e \u003c\/span\u003e\u003ci\u003eSmall\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003eO-Rings (2)\u003cspan\u003e \u003c\/span\u003e\u003ci\u003eLarge\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003ePTFE Seals (2)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sonnax","offers":[{"title":"Default Title","offer_id":46114702033094,"sku":"77911-03K","price":139.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2716\/4086\/files\/sonnax-sonnax-super-hold-2nd-gear-billet-servo-kit-for-4l60e-1250727814.jpg?v=1784758208"},{"product_id":"sonnax-billet-pinless-accumulator-piston-kit-for-4l60e","title":"Sonnax Billet Pinless Accumulator Piston Kit for 4L60e","description":"\u003cp\u003e\u003cstrong\u003eSonnax Billet Pinless Accumulator Piston Kit for 4L60e - 77998-03K\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003e*Two required per transmission - if replacing both, please ensure you change the quantity to 2 when adding to your cart*\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"spaced-vertical\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"part-accordion cb spaced-vertical\"\u003e\n\u003cdiv id=\"components\"\u003e\n\u003cdiv class=\"accordion-content\"\u003e\n\u003cdiv class=\"spaced-vertical\"\u003e\n\u003cp\u003eIn the GM 4L60e, it is common to have poor shift quality, burnt bands or clutches due to accumulator piston wear. Repeated reciprocation of the accumulator piston causes wear at the piston pin bore interface. After this wear reaches a critical point, fluid loss through the piston pin bore cannot be compensated due to lack of pump volume. In addition, the piston can get cocked and gall the accumulator bore due to the pin bore wear or the spring bottoming out. To prevent these conditions in the 1-2 or 3-4 accumulator bores, Sonnax offers pinless accumulator piston kit 77998-03K.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePinless design eliminates the possibility of pin bore leakage and the additional length stabilizes the piston to prevent piston cocking\u003c\/li\u003e\n\u003cli\u003eDual seals stabilize and completely seal the bore and provide a tight seal even after thousands of cycles\u003c\/li\u003e\n\u003cli\u003eSteel balls plug existing pin bore in case or cover\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"part-accordion cb spaced-vertical\"\u003e\n\u003cdiv id=\"notes\"\u003e\n\u003cstrong\u003e\u003clabel for=\"notes-panel\"\u003eNote\u003c\/label\u003e\u003c\/strong\u003e\n\u003cdiv class=\"accordion-content\"\u003e\n\u003cp\u003eSome late units use a single, small diameter spring in the 1-2 location. In this case, the spring can be discarded and replaced with Sonnax spring\u003cspan\u003e 74926\u003c\/span\u003e\u003ca href=\"https:\/\/www.sonnax.com\/parts\/1660-1-2-or-3-4-accumulator-spring\"\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"components\"\u003e\n\u003cstrong\u003e\u003clabel for=\"components-panel\"\u003eContents\u003c\/label\u003e\u003c\/strong\u003e\n\u003cdiv class=\"accordion-content\"\u003e\n\u003cul\u003e\n\u003cli\u003eD-Ring\u003cspan\u003e \u003c\/span\u003e\u003ci\u003eViton®\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003ePinless Accumulator Piston\u003cspan\u003e \u003c\/span\u003e\u003ci\u003eAluminum\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003eSeal\u003cspan\u003e \u003c\/span\u003e\u003ci\u003ePTFE\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003eSteel Ball\u003cspan\u003e \u003c\/span\u003e\u003ci\u003e.312\" dia.\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003eSteel Ball\u003cspan\u003e \u003c\/span\u003e\u003ci\u003e.236\" dia.\u003c\/i\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sonnax","offers":[{"title":"Default Title","offer_id":46114758230214,"sku":"77998-03K","price":26.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2716\/4086\/files\/sonnax-sonnax-billet-pinless-accumulator-piston-kit-for-4l60e-1250727813.jpg?v=1784758152"},{"product_id":"sonnax-billet-pinless-forward-accumulator-piston-kit-for-4l60e","title":"Sonnax Billet Pinless Forward Accumulator Piston Kit for 4L60e","description":"\u003cp\u003e\u003cstrong\u003eSonnax Billet Pinless Forward Accumulator Piston Kit for 4L60e - 77987-01K\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eIn GM 4L60-E, 4L65-E and 4L70-E units it is common for the plastic Forward accumulator piston to wear or crack. This causes a loss of fluid, resulting in delayed engagement, slips, burnt clutches and\/or bands. Repeated reciprocation of the accumulator piston causes the piston pin bore to wear, while fluid loss through the piston pin bore or cracks causes Forward clutch to slip. Sonnax pinless Forward accumulator piston kit 77987-01K eliminates these problems.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDual seals stabilize and completely seal the bore, providing a tight seal even after thousands of cycles\u003c\/li\u003e\n\u003cli\u003ePinless design eliminates the possibility of pin leakage, and the additional length stabilizes the piston to prevent piston cocking\u003c\/li\u003e\n\u003cli\u003eIncludes steel balls for plugging existing pin bore in valve body\u003c\/li\u003e\n\u003cli\u003eDrop-in Zip Valve\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eparts install quickly and easily\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003clabel for=\"components-panel\"\u003eContents\u003c\/label\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"accordion-content\"\u003e\n\u003cul\u003e\n\u003cli\u003ePiston\u003c\/li\u003e\n\u003cli\u003eD-Ring\u003c\/li\u003e\n\u003cli\u003eSeal\u003cspan\u003e \u003c\/span\u003e\u003ci\u003ePTFE\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003eSteel balls (2)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Sonnax","offers":[{"title":"Default Title","offer_id":46114781200582,"sku":"77987-01K","price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2716\/4086\/files\/sonnax-sonnax-billet-pinless-forward-accumulator-piston-kit-for-4l60e-1250727812.jpg?v=1784758089"},{"product_id":"6an-conversion-fittings-for-4l60e-transmission-pair","title":"6AN Conversion Fittings for 4L60e Transmission (Pair)","description":"\u003cp\u003e\u003cstrong\u003e6AN Conversion Fittings for 4L60e Transmission (Pair)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eNOTE: Fits pre-2008 4L60e ONLY.  2008 and later cases use a different type of fitting (Metric).\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e6AN Conversion fittings designed to convert the cooling line ports on your 4L60e transmission to 6AN.  These will allow you to run 6AN line and replace the quick disconnect style OEM fittings entirely.  They install directly into the case of the transmission.  \u003c\/p\u003e","brand":"Glenn's Auto Performance","offers":[{"title":"Default Title","offer_id":47771405222086,"sku":"481670-BLx2","price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2716\/4086\/files\/glenn-s-auto-performance-6an-conversion-fittings-for-4l60e-transmission-pair-1259921596.png?v=1790280611"},{"product_id":"6an-conversion-fittings-for-4l80e-transmission-pair","title":"6AN Conversion Fittings for 4L80e Transmission","description":"\u003cp\u003e\u003cstrong\u003e6AN Conversion Fittings for 4L80e Transmission - Includes Both Fittings\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e6AN Conversion fittings designed to convert the cooling line ports on your 4L80e transmission to 6AN.  These will allow you to run 6AN line and replace the quick disconnect style OEM fittings entirely.  They install directly into the case of the transmission.  The fitting with the extend discharge is designed to install in the rear port of the case.  It is critical that the correct rear fitting (like what is included in this set) is used as the extension provides fluid delivery to an important location within the trans. \u003c\/p\u003e","brand":"Glenn's Auto Performance","offers":[{"title":"Default Title","offer_id":47772175433926,"sku":"551124","price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2716\/4086\/files\/glenn-s-auto-performance-6an-conversion-fittings-for-4l80e-transmission-1259921595.png?v=1790280549"}],"url":"https:\/\/www.glennsautoperformance.com\/collections\/transmission-parts-upgrades.oembed","provider":"Glenn's Auto Performance","version":"1.0","type":"link"}