Sonnax

TH400 4L80E Adjustable Low/Reverse Servo Pin Kit (1995 & Earlier) by Sonnax

4L80-E, TH400 Adjustable Low/Reverse Servo Pin KitPart No. 34912-01KFits all TH400 & '95-earlier 4L80-E.OE Part No. 8624140, 8627193, 8624141, 8627194, 8627195 Sonnax adjustable low/reverse servo...

TH400 4L80E Extreme Duty Main Shaft | Sonnax

TH400 4L80E Extreme Duty Main Shaft Sonnax Part Number: 34672-05 Main shaft failure is a common problem in extreme duty GM TH400, 4L80-E and 4L85-E units. OE and aftermarket shafts simply...

TH400 4L80E HD Low/Revers Servo Piston | Sonnax | Pre-1996

TH400 4L80E HD Low/Revers Servo Piston (95-Earlier) by Sonnax Heavy Duty Low/Reverse Servo PistonPart No. 34914-01 Fits all TH400 & '95-earlier 4L80-E. OE Part No. 24232745 OE cast...

TH400 4L80E HD Sprag Element | Sonnax

Sonnax heavy duty sprag element 34658-HD is the ideal upgrade for GM TH400, 4L80-E, 4L85-E intermediate sprags in performance racing transmissions. Designed for Pro Mod-style direct drums, the Sonnax...

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 4L80E MT540 Forward & Direct Clutch Inner Snap Ring | Sonnax | 5-Pack

Allison AT540 AT543 AT545 GM 4L80E Turbo 400 Forward & Direct Clutch Inner Snap Ring Pack-of-5 Sonnax Part Number: 34577-01 NO TOOLING REQUIRED Sonnax forward and direct clutch inner snap ring...

TH400 4L80E Planet Pinion Pin | Sonnax | 4-Pack

TH400 4L80E 4L85E Output & Reaction Planet Pinion Pin Sonnax Part Number: 34875-01   Pack of...

TH400 4L80E Rubber Clutch Separator | Sonnax | Use w/ 0.080'' Clutches | 60-Pack

TH400 4L80E Rubber Clutch Separator FOR USE WITH FRICTIONS ABOUT 0.080'' THICK Sonnax Part Number: ORCS-103-380 Rubber separators can be used in GM TH400 and 4L80-E racing transmission to help keep...

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...