Hard Parts

TH400 Output Shaft | 15'' OAL | 32-Spline | 4" Spline | No Threads | Metal & Slip Speedo Style | No O-Ring Groove | BOP

TH400 Output Shaft | 15'' Length from Base 32-Spline  4" Spline Length No Threads  Metal & Slip Speedo Style  No O-Ring Groove  BOP

TH400 Output Shaft w/ Rubber O-Ring Groove (9'' LG)

This is a good used output shaft for GM's Turbo 400 transmissions.  It will work on most 2WD and some 4WD TH400 transmissions.  The shaft has a groove for the rubber o-ring and measures 9'' long.

TH400 4L80E 4L85E Output Carrier Silencer Ring (1969-2009) .177''

This is a high quality new aftermarket output carrier silencer ring for GM's Turbo 400 and 4L80E automatic transmissions manufactured from 1969 to 2009.

TH400 Pickup Tube - Short Style (Good Used)

This is a good used short style pickup tube for TH400 automatic transmissions.

TH400 4L80E Intermediate Pressure Plate Snap Ring (1982-2009)

This is a good used snapp ring that holds the intermediate pressure plate in on GM's Turbo 400 and 4L80E automatic transmissions manufactured from 1982 and up. 0.092'' Thick  

TH400 4L80E Center Support to Case Rear Snap Ring (1982-2009)

This is a new replacement center support to case snap ring for GM Turbo 400 and 4L80E transmissions manufactured from 1982 to 2009.

TH400 4L80E Intermediate Clutch Pack Snap Ring .098" - Upgraded TransGo

This is an upgraded replacement snap ring for the intermedaite clutch pack in TH400 transmissions.  The snap ring is HD and made by TransGo and is .098".

4L80E TH400 Output & Reaction Planetary Rebuild Kit (1969-1998)

Planetary Rebuild KitPart No. 34875RK Output & reaction planetaries, '69–'98 with .750" wide pinion gears Contents Pinion Pins (4) Pinion Rollers (72) Pinion Washers (8) Round Thrust Washers (8)

4L80E TH400 Heavy Duty Forward Clutch Hub

Sonnax heavy duty forward clutch hub 34322-01 is an ideal upgrade over OE hubs in GM 400, 425, 4L80-E and 4L85-E applications. It is made from 1045 steel forging and features a thicker cross-section for increased strength. Made from forged 1045...

4L80E TH400 Extreme Duty Forward Clutch Hub Kit

Sonnax extreme duty forward clutch hub kit 34322-02K is manufactured from forged 4140 steel and features nitrited and case-hardened splines to eliminate spline wear in extreme applications. Includes bearing between hub and direct clutch housing. The...

TH400 9" Output Shaft (32-Spline) Slip Yoke

This is a good used Turbo 400 output shaft with 32-splines and is the slip yoke style.  All our of TH400 transmission OEM used hard parts have been cleaned and inspected to ensure the parts you receive are ready to use in your rebuild.

TH400 4L80E Rear Planet Sun Gear - Slant Cut/Medium Lube Hole

This is a good used OEM rear planet sun gear for GM Turbo 400 and 4L80E automatic transmissions.  The sun gear in this listing is the slant cut style with medium lube hole.  Please verify this is the style you need before purchasing.

Sprag, Low Roller, 400 (1965-95), 4L80E (1990-E1995), AOD/AODE/4R70W/4R75W/4R70E/4R75E (Rear)(1980-Up), FMX,

This is a new high quality Borg Warner low roller sprag for GM Turbo 400 transmissions manufactured from 1965 to 1995.  

TH400 4L80E Direct Clutch Drum w/ 34-Element Sprag

TH400 Accumulator Piston Upgraded Aluminum w/ 3-Legs (1965-1998)

This is an upgraded aluminum style accumulator piston w/ 3-Legs for GM Turbo 400 transmissions manufactured from 1965 to 1998.

GM TH400 HD Intermediate Snap Ring Support by Adapt-A-Case

GM Turbo 400 HD Intermediate Snap Ring Support Made in the USA by Adapt-A-Case Gotta love it!  Buy the good clutches, a fancy trans-brake valve body, the HD sprags, all the stuff you can think of to make sure this one won't break.  A couple of...

TH400 4L80E Forward Hub

This is an OEM forward hub for GM Turbo 400 and 4L80E automatic transmission that has been cleaned and inspected by our technicans to ensure the forward hub you receive is ready to go into your TH400 or 4L80E transmission rebuild. 

TH400|4L80E Direct Clutch Hub - OEM

This is an OEM GM 4L80E and Turbo 400 direct clutch hub, which has been cleaned and inspected to ensure it is 100% ready to use in your transmission rebuild. 

GM Universal Dust Cover (Plastic)

Made in U.S.ANew Fitz-all by TeckPack  Universal Transmission dust cover.1 - Universal Dust Cover1 - Mounting HardwareFits over 90% of all GM rear wheel drive automatic transmissions, 1965 to 1995 car and light duty truck. Fits: 200C,...