Hard Parts

TH350 350C Intermediate Servo Sleeve Kit | Sonnax

TH350 TH350C Intermediate Servo Sleeve Kit Sonnax Part Number: 35709-01K In GM TH350 and TH350C units, the intermediate servo bore becomes scored from repeated cycling. The spring side of the piston has line pressure present in R, N, D. Excess leakage...

TH350 350C Shift Shaft & Seal Kit | Sonnax

TH350 TH350C Shift Shaft & Seal Kit Sonnax Part Number: 35801-02K It is common for the shift shaft seal in GM TH350 and TH350C transmissions to leak. Often this leaking is caused by scoring on the shift shaft itself, preventing the seal from doing...

Dipstick Tube Repair End fpr GM, Ford, & Chrysler (Includes Hat Seal) (Can be Braised)

SKU# K35999RFits Ford, Chrysler & GM (with GM hat seal) Made of steel so it can be braised.

TH350 HD Input Shaft and Drum (Non-Lockup)

TH350 HD Input Shaft and Drum (Non-Lockup) This 2nd Generation Drum & Input Shaft is designed for OFF-ROAD RACING and EXTREME DUTY applications. Input shaft is made from 300M steel. Drum is made from 4140 HTSR steel. Weighs 6.79 lbs. versus 8.23 lbs...

TH350 Input Drum w/ Shaft (1979-1984) Lockup

TH350 Input Drum w/ Shaft (1979-1984) Lockup

TH350 Forward Clutch Retainer Spring

TH350 Forward Clutch Retainer Spring Good used  

TH350 Intermediate Sprag Outer Race

TH350 Intermediate Sprag Outer Race Good Used  

TH350 Rear Planet Ring Gear | Washer Style

Used TH350 transmission washer style ring gear.  

TH350 Vega Style Sunshell

TH350 Vega Style Performance Sunshell w/ Drilled Holes

TH350 Intermediate Sprag (1969-1986)

This is a high quality replacement aftermarket intermediate sprag for GM's Turbo 350 transmissions manufactured from 1969 to 1986.

TH350 Intermediate Overrun Clutch Outer Race | Sonnax

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 aftermarket race for unrivaled reliability at any power level...

TH350 4L60E 700R4 4L60E Case Saver (1-Piece)

TH350, 4L60E, 700R4, 4L65E, 4L70E, TH200 transmission 1-piece case saver good for 1969 and up model years.

TH350 Oil Pan (1969-1986) USED OEM

If you're looking for an OEM TH350 oil pan then look no further.  There is limited supply on these pans so they check back frequently if its out of stock.  These pans have been reclaimed from core transmissions that have had decades of service...

TH350 Lock-Up Valve Body Separator Plate - OEM (1980-1986)

GM OEM Turbo 350 valve body separator plate for lock-up transmissions.  All our OEM hard parts have been cleaned and inspcted to ensure that is 100% ready for your rebuild.  

TH350 Front Planet Ring Gear (1969-1968) 2-Piece

This is a good used TH350 transmission front planet 2-piece ring gear for 1969 and up model transmissions.  All of our used OEM Turbo 350 front planet ring gears have been cleaned and inspected to ensure they are ready to use in your rebuild.

TH350 Direct Clutch Drum w/ Sprag

This is a good used transmission TH350 direct clutch drum with sprag.  

TH350 Output Shaft 2WD - Size C

This is a good used Turbo 350 output shaft for 2-wheel drive vehicles.  Size C

TH350 Output Shaft 2WD 18.5" Total Length

This is a good used Turbo 350 output shaft for 2-wheel drive vehicles 18.5" total length.

TH350 Output Shaft 2WD - Size A

This is a good used Turbo 350 output shaft for 2-wheel drive vehicles.  Size A

TH350 Rear Planet Ring Gear - Washer Style (1969-1986)

This is a used good Turbo 350 transmission WASHER style rear planet ring gear.  All of our used TH350 hard parts have been cleaned and inspected to ensure it is ready to use in your rebuild.