Sonnax

TAAT Pressure Regulator Cushion Spring

TAAT Pressure Regulator Cushion SpringPart No. 95200-01 Fits Type 1 or Type 2 valve bodies. In Saturn TAAT units, the line pressure regulator valve cushion spring commonly breaks, resulting...

TAAT Pressure Regulator Valve Cushion Spring (2nd Design VB) Sonnax Upgrade

Saturn TAAT automatic transmission pressure regulator valve cushion spring by Sonnax Sonnax Part Number: 95200-01

TAAT Pressure Regulator Valve Sleeve (2nd Design Valve Body) Sonnax Upgrade

Saturn TAAT Pressure Regulator Valve Sleeve  Sonnax Part Number 95200-05K

TH350 1-2 Accumulator Piston Cover Kit

Sonnax 1-2 accumulator piston cover kit 35988-01K, a machined aluminum accumulator cover for use in any GM 350 and 350c applications, provides a strong yet lightweight alternative to OE accumulator...

TH350 Boost Valve Kit

In GM 350 and 350C units, the OE boost valve sleeve wears out from the reciprocation of the steel valve within the aluminum sleeve. Wear in the Reverse boost sleeve results in low line pressure, soft...

TH350 Case Cover to Sprocket Bearing

TH350 Governor Gear Kit

Contents Gear Nails (2) Roll Pin Specs Color: Green

TH350 Intermediate Overrun Clutch Outer Race - Sonnax HD

A revolutionary upgrade for GM TH350 and TH350C performance vehicles, Sonnax heavy duty intermediate overrun clutch outer race 35723HD-02 delivers twice the torque capacity of any OE or other...

TH350 Line Pressure Booster Kit

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...

TH350 Overrun Clutch Outer Race - Sonnax HD

The outer race of the intermediate overrun clutch is prone to cracking in higher torque load applications. Aftermarket versions are typically less reliable than original OE version. Sonnax offers...

TH350 Oversized Accumulator Pin & Reamer Kit

A burned or complete failure of the direct clutch on the THM 350 transmission can be created by accumulator cross leaks. A drivability complaint of a long slide on the 2-3 shift can result from...

TH350 TH400 Powerglide HD Pump Bushing (Steel - 0.615'')

Worn babbit pump bushings in GM Powerglide, 350, 400 and Allison®AT540 units allow the converter hub and inner pump gear to move off-center, causing damage to the pump gears and pump housing...

TH350C Rebuilt HD Sonnax Governor

This is a high quality Sonnax rebuilt HD performance governor for Turbo 350 and 350C automatic transmissions.

TH400 4L80E Manual Shift Shaft Kit (1985-1994) 4.660''

4L80-E, 4L85-E, Turbo 400 Transmissions Manual Shaft Lever - 4.660'' Long  Includes 2 Flange Nuts 1985-1994 Sonnax

TH400 Boost Valve Kit (No O-Rings Style) Sonnax

TH400 Boost Valve KitPart No. 34910-05K Factory Style, No O-Rings Vehicles with a THM 400 transmission frequently have poor line rise, soft 1-2 and/or 2-3 shifts,and/or Reverse engagement...

TH400 Boost Valve Kit (O-ring Style) Sonnax

TH400, TH425 Boost Valve KitPart No. 34910-01K O-Ring Style Vehicles with a GM 400 and 425 transmissions frequently have poor line rise, soft 1-2 and/or 2-3 shifts and/or Reverse engagement...

TH400 High Performance Sonnax Updated Governor

This Turbo 400 governor has been rebuilt by Sonnax for use in high performance applications. 2nd Design

TH400 Line Pressure Booster Kit

TH400 Line Pressure Booster KitPart No. 400-LB1 Sonnax hydraulic line pressure booster kits contain stronger pressure regulator springs and large ratio boost valves designed to work together...

TH400 Manual Shift Shaft Kit

TH400 Manual Shift Shaft KitPart No. 38511-05K Fits GM TH400 units only! The manual shift shafts in GM TH400 units become corroded in harsh environments and are not suitable for reuse,...