Sonnax, Superior, Transgo

Shift Correction Package This Shift Correction Package offers regular and heavy duty applications in one package. The Superior 4L60-E kit helps pr...

Transgo Pressure Switch Repair Kit - PSR-5 Designed for 2006 and newer General Motors and BMW vehicles equipped with 6L45, 6L50, 6L80, 6L90, or GE...

Pinless Accumulator Piston 1-2 & 3-4 Kit Sonnax TH700-R4 4L60E 4L65E 4L70E TH200-4R Upgrade your transmission with the Sonnax Pinless Accumulat...

Axle Bushing and Seal Kit 6F35, 6T40, 6T30 This kit includes: 1 SuperTuff bushing and 1 premium seal.Transmissions: 6T30 (MH9) 2009-UP, 6F35 2008-...

Valve Body Checkballs – Set of 10 This set includes 10 high-performance checkballs (.250" size) made from durable, wear-resistant imidized plastic....

Superior Shift Kit with Separator Plate for TH350, TH350C, TH250, TH250C The Superior Shift Kit with Separator Plate is designed to enhance perform...

Transgo Cooler Flow Bypass Delete Kit for 2014-On 6L80, 6L90, 2015-On 8L90, 2017-19 Allison 6L80-CLR-BYPASS This Transgo Cooler Flow Bypass Delet...

Boost Valve Kit 4L80-E, 4L85-E From Sonnax Compatible with '91-later units featuring a factory-style sleeve (no O-rings). Can also be retrofitted t...

Transgo SHIFT KIT Valve Body Repair Kit for 6L45, 6L50, 6L80, 6L90 This TransGo 6L80 SHIFT KIT® is designed for 2006 and later General Motors and B...

Sonnax Boost Valve Kit for 6L45, 6L50, 6L80, 6L90 Transmissions Upgrade your transmission's performance with the Sonnax Boost Valve Kit, designed f...

Sonnax Pressure Switch Rebuild Installation Tool Kit 6L45 6L50 6L80 6L90 6T70 (Gen 1) 6T75 (Gen 1) Transmissions: 6L80 (MYC,6L80E) 2006-UP, 6L45 (...

TransGo Valve Body Bore End Plugs for 4L60E, 4L65E, 4L70E (1993–2015) TransGo's valve body bore end plugs are designed to fix commonly overlooked h...

Sonnax Valve Body Reaming Fixture – VB-FIX Repairing worn valve bores can be nearly impossible on some valve bodies due to the lack of a pilot poin...

Transgo Forward Accumulator Piston for 4L60E, 4L65E, 4L70E (1993-2015) This 4L6-FWD aluminum forward accumulator piston is a direct replacement for...

Valve Body Separator Plate Transgo 4L60E 1996/06 TransGo Separator Plate for 4L60E 1996/06 (except 2005 Corvette) The TransGo Separator Plate for 4...

Transgo Drop-in Pressure Regulator Valve for 4L60E, 4L65E, 4L70E (1993-2015) In General Motors vehicles from 1993 to 2015 equipped with 4L60E, 4L65...

Sonnax 1-2 And 2-3 Shift Valve Spring Kit for 4L80-E, 4L85-E In GM 4L80-E and 4L85-E transmissions, proper 4th gear operation relies on signal A oi...

Sonnax Servo Release Check Valve Kit for TH700, TH700-R4, 4L60E, 4L65E, 4L70E The Sonnax Servo Release Check Valve Kit 77701-076 addresses key issu...

Sonnax Boost Valve Kit for 4L80-E, 4L85-E GM 4L80-E and 4L85-E transmissions often encounter issues like uncontrollable line rise (up to 500-600 ps...

Transgo TYPE-3 1-2 Accumulator Piston Without Legs for 4L60E, 4L65E, 4L70E (2003-2015) The 4L65-2ACM is a Type-3 1-2 accumulator piston designed wi...

Transgo Reprogramming Kit with Gear Command for 4L60E, 4L65E, 4L70E 4L60E-HD2 4L60E-HD2 Reprogramming Kit, a comprehensive solution tailored for ...

Superior Pump Flow Control Valve Designed for optimal performance, the Superior Pump Flow Control Valve is compatible with all 2014-up 6L80/90E mo...

Transgo Clutch Select Valve and TCC Regulator Valve Kit for 6L45, 6L50, 6L80, 6L90 6L8 CS-TCC This kit is designed for 2006 and later General Mot...

Sonnax Zip Kit for Gen 1 10L60, 10L80, 10L90, 10R60, 10R80, 10R90 The Sonnax Zip Kit 10L80-G1-10R80-ZIP is engineered to resolve the most common is...