Sonnax

1-2-3-4 Sonnax Upgrade 6L80 / 6L90 Piston

This OE part has many issues OE Part No: 24238700 The piston like to crack and cause chatter on take of, slips or no forward. This upgraded piston is the best money can buy. GM 6L80/6L90...

6T40-Zip Kit Sonnax GM

Part No. 6T40-ZIPIncludes: Pressure Switch Rebuild Kit, End Plugs (5), Compensator Feed Regulator Valve Kit TCC Regulator Apply Valve, Shuttle Valve, End Plug, Spring & O-rings 2 O-Rings, 1...

Smart-Tech® Forward Clutch Drum Part No. 76654-01K

Smart-Tech® Forward Clutch Drum Part No. 76654-01K Compatible with ISS-equipped and non ISS-equipped applications   Watch the video great information...

Sonnax 4T65E Boost Valve w/ O-Rings And Pressure Spring upgrade

Sonnax hydraulic line pressure booster kits contain stronger pressure regulator springs and large ratio boost valves designed to work together to provide progressive pressure increases as driving...

Sonnax Zip Kit 6T70 / 6T75 Gen 1

Pressure Switch Rebuild Kit Seals (5),  Laminate Discs (5),  Installation Tool Kit O-Ringed End Plug Kit  Isolator Valve Kit TCC Regulator Apply Valve,  Shuttle...

TOYOTA A750 A761 AB60E A960E SONNAX ZIP KIT VALVE BODY UPGRADE S-A750E-A761E-ZIP

This Zip Kit is what the “top of the line transmission shop” use on their rebuilds. This kit requires no special tools (reams). This kit is all top quality...

Zip Kit Sonnax 6L45-6L80-6L90

Sonnax Part # 6L45-6L90-Zip includes: Pressure regulator valve (fix worn bore) , Boost valve kit (fix worn bore), Check balls ( common issues) AFL valve kit Clutch Select Valve Spring,...

Pressure Regulator Valve Sonnax 6L45-50-80-90

This kit fixes common bore  issues with a upgrade design. No special tool needed. I use this on every rebuilt to prevent bore wear, even on a new pump stator.  GM 6L45, 6L50, 6L80 and...

Pressure Switch Plug Sonnax

5R110W transmission came with a pressure switch that was never used. The problem: The cheap plastic pressure switch would crack and cause a leak inside your transmission. The leak will cause low...

Sonnax Super Hold 4th Piston 700R4 / 4L60E / 4L65E

Sonnax Super Hold 4th Servo Piston Kit Works great with 2nd super hold servo Vehicles with GM 4L60, 4L60-E, 4L65-E and 4L70-E transmissions often exhibit poor 3-4 shift quality and experience band...

4L60E Input Clutch Renforcement Kit Sonnax 77733-51K

  4L60, 4L60-E, 4L65-E, 4L70-E   designed for use only with a stamped steel forward piston  Input Drum Reinforcement Kit   Part No. 77733-51K Reinforcement...

E4OD-4R100-ZIP Kit Sonnax Valve body Kit

Symptoms: Burnt Low/Reverse clutch, Code 62, 628, 1744, Delayed engagement, High line pressure, Lockup shudder, Loss of gear, No engine braking, OD planetary...