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 its job. Scoring and scratches can be caused by gritty contamination getting in past a worn seal, or from using improper tools to remove an old seal. In these cases the shift shaft must be replaced along with the seal to restore normal operation. For instances where the case itself is badly damaged, installing supplied O-ring into the shaft groove will allow salvage of the case. Stop leaking and contamination for good by installing Sonnax shift shaft and seal kit 35801-02K.

More From This Category

Motive Gear Differential Master Bearing Kit, Koyo, For TOYOTA 4RUNNER 1995–2002, Kit

Motive Gear Differential Master Bearing Kit, Koyo, For TOYOTA 4RUNNER 1995–2002, Kit

$727.68

PHC Clutch Concentric Slave Cylinder, For Renault Megane 2.0 Ltr MPFI Turbo, F4R 774, 165kw 6 Speed, 5/04-9/08 2004-2008, Each

PHC Clutch Concentric Slave Cylinder, For Renault Megane 2.0 Ltr MPFI Turbo, F4R 774, 165kw 6 Speed, 5/04-9/08 2004-2008, Each

$113.51

TCI Automatic Transmission Rebuild Kit, Master Racing, For Ford, For Lincoln, For Mercury, AODE, Kit

TCI Automatic Transmission Rebuild Kit, Master Racing, For Ford, For Lincoln, For Mercury, AODE, Kit

$924.11

MANLEY Connecting Rod Pin Bushing, Bronze, 1.041 in. OD, .992 in. ID, .985 in. Length, Set of 8

MANLEY Connecting Rod Pin Bushing, Bronze, 1.041 in. OD, .992 in. ID, .985 in. Length, Set of 8

$182.30

Motive Gear Differential Bearing Kit, Timken, For BUICK CENTURY 1978–1981, Kit

Motive Gear Differential Bearing Kit, Timken, For BUICK CENTURY 1978–1981, Kit

$157.21