Hard Parts

TH350 350C Intermediate Servo Sleeve Kit | Sonnax

Sonnax part number: 35709-01K TH350 TH350C Intermediate Servo Sleeve Kit In GM TH350 and TH350C units, the intermediate servo bore becomes scored from repeated cycling. The spring side of the piston...

TH350 350C Shift Shaft & Seal Kit | Sonnax

Sonnax part number: 35801-02K TH350 TH350C Shift Shaft & Seal Kit 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...

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

Part number: K35999R A dipstick tube repair end for GM, Ford and Chrysler transmissions, made by Fitzall. It includes a hat seal for GM applications, is made of steel, and can be brazed for a...

TH350 HD Input Shaft and Drum (Non-Lockup)

Part number: 327600Fits: TH350 Heavy-duty 2nd generation input shaft and drum assembly from TCS for the TH350, in the non-lockup version. It is built for off-road racing and extreme duty use. The...

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

Part number: 1604B2Fits: TH350 · 1979-1984 A used TH350 input drum with integrated shaft, built for the lockup-style TH350 used from 1979-1984. It is made in the USA and sold individually as a single...

TH350 Forward Clutch Retainer Spring

Part number: 1349ABFits: TH350 A forward clutch retainer spring for TH350 automatic transmissions, offered in good used condition rather than new. It is sold individually rather than as part of a...

TH350 Intermediate Sprag Outer Race

Part number: U44663Fits: TH350 A replacement intermediate sprag outer race for TH350 automatic transmissions, sold as a used part rather than new production. It is graded good used condition and...

TH350 Rear Planet Ring Gear | Washer Style

Part number: 1224AFits: TH350 A used TH350 rear planet ring gear, washer style, sold individually. It is a used part and should be inspected before installation, sold as a single ring gear rather...

TH350 Vega Style Sunshell

Part number: 1328AFits: TH350 A used TH350 (Turbo 350) Vega-style sunshell, with drilled holes. This is a tested used part, sold individually as a single sunshell for this application, cleaned and...

TH350 Intermediate Sprag (1969-1986)

Part number: A44652 An intermediate sprag, the one-way clutch used in the intermediate clutch assembly, for GM's TH350, 350C, 250 and 250C Turbo Hydramatic transmissions built from 1969 to 1986. This...

TH350 Intermediate Overrun Clutch Outer Race | Sonnax

Sonnax part number: 35723HD-02 A revolutionary upgrade for GM TH350 and TH350C performance vehicles, Sonnax heavy duty intermediate overrun clutch outer race 35723HD-02 delivers twice the torque...

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

Part number: A44761B A 1-piece case saver for GM's TH350, 4L60E, and 700R4 automatic transmissions, also fitting the 4L65E, 4L70E, and TH200, covering 1969 and up model years. It is made in the USA...

TH350 Oil Pan (1969-1986) USED OEM

Part number: 1326Fits: TH350 · 1969-1986 Used OEM TH350 oil pan reclaimed from core transmissions that have had decades of service. Pans may have minor dings and wear marks. The outside is painted to...

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

Part number: 1324BFits: Turbo 350 · 1980-1986 An OEM valve body separator plate for GM's Turbo 350 transmission, the lock-up style used 1980-1986. This hard part has been cleaned and inspected, and...

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

Part number: 1322Fits: TH350 A used front planet ring gear for GM Turbo 350 (TH350) automatic transmissions, fitting 2-piece style units from 1969 through 1986. It is a cleaned and inspected used OEM...

TH350 Direct Clutch Drum w/ Sprag

Part number: 1604AFits: TH350 A used direct clutch drum with an integrated sprag for TH350 transmissions. This drum houses the direct clutch piston bore and the one-way sprag clutch that locks the...

TH350 Output Shaft 2WD - Size C

Part number: 1441CFits: TH350 A used output shaft for TH350 (Turbo 350) transmissions, 2-wheel drive, size C. It is sold individually as a single used output shaft for this application, part number...

TH350 Output Shaft 2WD 18.5" Total Length

Part number: 1441BFits: TH350 A good used output shaft for 2-wheel drive TH350 (Turbo 350) automatic transmissions, 18.5'' total length, made in the US. It is the Size B output shaft, inspected as a...

TH350 Output Shaft 2WD - Size A

Part number: 1441AFits: TH350 Good used TH350 (Turbo 350) output shaft for 2-wheel drive vehicles, size A. Confirm your TH350 shaft is the 2WD size A before ordering.

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

Part number: 1226Fits: Turbo 350/350C · 1969-1986 A used rear planet ring gear for Turbo 350 (TH350) automatic transmissions, the washer style, covering units built 1969 to 1986. It is a used part...