Sonnax

TH400 Bearing Kit | Sonnax

TH400 Bearing Kit Sonnax Part Number: SBK-G10 PACKAGE CONTAINS Sun/Internal Gear Rear Ring Gear/Output Shaft Center Support/Sun...

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 Clutch Volume Spacer Kit | Sonnax | Use w/ 34554-01 Drum

TH400 Clutch Volume Spacer Kit FOR USE WITH HEAVY DUTY FORWARD DRUM 34554-01 Sonnax Part Number: 34554-11K Sonnax heavy duty forward drum 34554-01 is a lightweight upgrade for GM TH400 high...

TH400 Early-4L80E Case Saver Retainer | Sonnax

TH400 (All Years) 4L80E (1991-1998) Case Saver Retainer Sonnax Part Number: 34762-10 Sonnax case saver retainer 34762-10 for the GM TH400 and '98-earlier 4L80-E is the only intermediate clutch...

TH400 Externally Adjustable Low/Reverse Servo Kit | Sonnax

Designed for GM TH400 racing transmissions, Sonnax externally adjustable low/reverse servo kit 34914-20K makes band maintenance quick and easy. It’s an ideal way to improve reliability and make...

TH400 Extreme Duty Input Shaft | Sonnax | Pumps Converted to 27-Spline 1-3/16'' Shaft Configuration

TH400 Extreme Duty Input Shaft  THIS SHAFT IS INTENDED FOR USE IN UNITS ALREADY SET UP FOR A 27-SPLINE TURBINE HUB IN THE TORQUE CONVERTER ANDA. PUMP AND STATOR ASSEMBLY CONFIGURED FOR A...

TH400 Extreme Duty Input Shaft | Sonnax | Retro Required

TH400 Extreme Duty Input Shaft  USING THIS SHAFT REQUIRES CHANGING TO A 35-SPLINE TURBINE HUB IN THE TORQUE CONVERTER AND USE OF PUMP COVER BIG SHAFT STATOR SUPPORT TUBE KIT 28154S-125 WITH...

TH400 Governor Gear Repair Kit 11 Tooth

This package contains all the parts required to rebuild your used TH400 transmission governor. Sonnax No. 402    

TH400 HD Forward Drum | Sonnax

TH400 Heavy Duty Forward Drum Sonnax Part Number: 34554-01 The ideal GM TH400 upgrade for any power level, Sonnax heavy duty forward drum 34554-01 features a unique combination of high-strength,...

TH400 HD Input Shaft | Sonnax | Turbine Support Bushing in Converter Style

TH400 Extreme Duty Input Shaft  FOR USE WITH TURBINE SUPPORT BUSHING IN CONVERTER Sonnax Part Number: 30280-02 Input shaft failure is a common problem in performance GM TH400 transmissions...

TH400 HD Input Shaft | Sonnax | WITHOUT Turbine Support Bushing in Converter Style

TH400 Extreme Duty Input Shaft  FOR USE WITHOUT INTERNAL TURBINE SUPPORT BUSHING IN CONVERTER Sonnax Part Number: 30280-01 Input shaft failure is a common problem in performance GM TH400...

TH400 Heavy Duty Forward & Direct Spring Retainer (Pack of 5) by Sonnax 8679934

TH400 Heavy Duty Forward/Direct Spring RetainerPart No. 34554-12OE Part No. 8679934 Package Quantity: 5 Sonnax heavy duty forward/direct spring retainer 34554-12 is ideal for GM TH400 performance...

TH400 High Performance Sonnax Updated Governor

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

TH400 Line Pressure Booster Kit | Sonnax

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...

TH400 Manual Shift Shaft Kit | Sonnax

The manual shift shafts in GM TH400 units become corroded in harsh environments and are not suitable for reuse, especially in remanufacturing. The Sonnax manual shift shaft kit 38511-05K is a direct...

TH400 Pump Thrust Bearing Kit | Sonnax

TH400 Pump Thrust Bearing Kit by Sonnax Part No. 34211-01K GM TH400 transmissions set front endplay with selective thrust washers between the pump and forward drum. In heavy-duty and racing...

TH400 Rubber Clutch Separator | Sonnax | Use w/ 0.060'' Clutches | 70-Pack

TH400 Rubber Clutch Separator FOR USE WITH FRICTIONS ABOUT 0.060'' THICK Sonnax Part Number: ORCS-070-380 Rubber separators can be used in GM TH400 racing transmissions to help keep clutch steels...

TH400 Shift Lever Kit | Sonnax

TH400 Shift Lever Kit Sonnax Part Number: 38512-01K Sonnax shift lever kit 38512-01K uses an O-ring on the shaft to prevent leakage from GM TH400 cases. Built with sturdy, solid steel construction,...

TH400 Smart-Tech® Drum Module for Big Main Shaft | Sonnax

TH400 Smart-Tech® Drum Module for Big Main Shaft FOR RACING APPLICATIONS THAT DO NOT USE FRONT BAND AND RUN A COAN RACING XST 1-1/8'' MAIN SHAFT Sonnax Part Number: 34555-03K Sonnax Smart-Tech...

TH400 Smart-Tech® Drum Module | Sonnax | Racing Applications

TH400 Smart-Tech® Drum Module FOR RACING APPLICATIONS THAT DO NOT USE FRONT BAND AND RUN A 1'' MAIN SHAFT Sonnax Part Number: 34555-01K Sonnax Smart-Tech drum module 34555-01K for racing GM...