GMC C35 Differential

ARB AIR LOCKER LOCKING DIFFERENTIAL KIT -- 30-spline, supports 4.1/1 ratio and down, 6.4375 in. ring gear ID, 12 x 7.78 in. ring bolt pattern; Includes a pneumatically-operated differential, an air line, a solenoid valve, an activation switch and bulkhead fittings; Unlike regular differentials that cause your vehicle to lose traction on rough terrain, the Air Locker utilizes a separately-sold 12-volt on-board air compressor to lock its differential gears and provide 100 percent off-road traction at the flick of a switch; This feature also reduces the likelihood of vehicle damage and environmental impact since an Air Locker-equipped truck relies less on momentum and can be driven in a slower, safer and more controlled manner; Operates like a conventional open differential when unlocked; Easy installation and maintenance; With ARB's 24-month limited warranty.

Fits the following 1975-1978 GMC C35 submodels:

• 1975-1978: All Submodels; All Engines;

TRANS-DAPT DIFFERENTIAL COVER, STEEL, CHROME-PLATED -- 10.5 in. ring gear diameter; Includes differential cover bolts and gasket; 14-bolt design; This high quality, direct fit OE replacement differential cover gives your undercarriage an unexpected touch of chrome; If you need to replace your gasket, purchase Trans-Dapt differential cover gasket part number T379058; With Trans-Dapt's limited 1 year warranty.

Fits the following 1975-1978 GMC C35 submodels:

• 1978-1978: Base; 6 Cyl 4.1L; "GAS, CARB, VIN D"
• 1978-1978: Base; 8 Cyl 5.0L; "GAS, CARB, VIN U"

• 1978-1978: High Sierra; 6 Cyl 4.1L; "GAS, CARB, VIN D"

• 1978-1978: High Sierra; 8 Cyl 5.0L; "GAS, CARB, VIN U"

• 1978-1978: Sierra Classic; 6 Cyl 4.1L; "GAS, CARB, VIN D"

• 1978-1978: Sierra Classic; 8 Cyl 5.0L; "GAS, CARB, VIN U"

• 1978-1978: Sierra Grande; 6 Cyl 4.1L; "GAS, CARB, VIN D"

• 1978-1978: Sierra Grande; 8 Cyl 5.0L; "GAS, CARB, VIN U"

• 1977-1978: Base; 8 Cyl 6.6L; "GAS, CARB, VIN R"

• 1977-1978: High Sierra; 8 Cyl 6.6L; "GAS, CARB, VIN R"

• 1977-1978: Sierra Classic; 8 Cyl 6.6L; "GAS, CARB, VIN R"

• 1977-1978: Sierra Grande; 8 Cyl 6.6L; "GAS, CARB, VIN R"

• 1976-1978: Base; 8 Cyl 5.7L; "GAS, CARB, VIN L"

• 1976-1978: Base; 8 Cyl 7.4L; "GAS, CARB, VIN S"

• 1976-1978: High Sierra; 8 Cyl 5.7L; "GAS, CARB, VIN L"

• 1976-1978: High Sierra; 8 Cyl 7.4L; "GAS, CARB, VIN S"

• 1976-1978: Sierra Classic; 8 Cyl 5.7L; "GAS, CARB, VIN L"

• 1976-1978: Sierra Classic; 8 Cyl 7.4L; "GAS, CARB, VIN S"

• 1976-1978: Sierra Grande; 8 Cyl 5.7L; "GAS, CARB, VIN L"

• 1976-1978: Sierra Grande; 8 Cyl 7.4L; "GAS, CARB, VIN S"

• 1975-1978: Base; 6 Cyl 4.8L; "GAS, CARB, VIN T"

• 1975-1978: High Sierra; 6 Cyl 4.8L; "GAS, CARB, VIN T"

• 1975-1978: Sierra Classic; 6 Cyl 4.8L; "GAS, CARB, VIN T"

• 1975-1978: Sierra Grande; 6 Cyl 4.8L; "GAS, CARB, VIN T"

• 1976-1976: Base; 8 Cyl 6.6L; "GAS, CARB, VIN U"

• 1976-1976: Base; 8 Cyl 7.4L; "GAS, CARB, VIN Y"

• 1976-1976: High Sierra; 8 Cyl 6.6L; "GAS, CARB, VIN U"

• 1976-1976: High Sierra; 8 Cyl 7.4L; "GAS, CARB, VIN Y"

• 1976-1976: Sierra Classic; 8 Cyl 6.6L; "GAS, CARB, VIN U"

• 1976-1976: Sierra Classic; 8 Cyl 7.4L; "GAS, CARB, VIN Y"

• 1976-1976: Sierra Grande; 8 Cyl 6.6L; "GAS, CARB, VIN U"

• 1976-1976: Sierra Grande; 8 Cyl 7.4L; "GAS, CARB, VIN Y"

• 1975-1976: Base; 8 Cyl 5.7L; "GAS, CARB, VIN V"

• 1975-1976: High Sierra; 8 Cyl 5.7L; "GAS, CARB, VIN V"

• 1975-1976: Sierra Classic; 8 Cyl 5.7L; "GAS, CARB, VIN V"

• 1975-1976: Sierra Grande; 8 Cyl 5.7L; "GAS, CARB, VIN V"

• 1975-1975: Base; 6 Cyl 4.1L; "GAS, CARB, VIN Q"

• 1975-1975: Base; 8 Cyl 5.7L; "GAS, CARB, VIN Y"

• 1975-1975: Base; 8 Cyl 7.4L; "GAS, CARB, VIN Z"

• 1975-1975: High Sierra; 6 Cyl 4.1L; "GAS, CARB, VIN Q"

• 1975-1975: High Sierra; 8 Cyl 5.7L; "GAS, CARB, VIN Y"

• 1975-1975: High Sierra; 8 Cyl 7.4L; "GAS, CARB, VIN Z"

• 1975-1975: Sierra Classic; 6 Cyl 4.1L; "GAS, CARB, VIN Q"

• 1975-1975: Sierra Classic; 8 Cyl 5.7L; "GAS, CARB, VIN Y"

• 1975-1975: Sierra Classic; 8 Cyl 7.4L; "GAS, CARB, VIN Z"

• 1975-1975: Sierra Grande; 6 Cyl 4.1L; "GAS, CARB, VIN Q"

• 1975-1975: Sierra Grande; 8 Cyl 5.7L; "GAS, CARB, VIN Y"

• 1975-1975: Sierra Grande; 8 Cyl 7.4L; "GAS, CARB, VIN Z"

Fits 46 more submodels. (Show all) Show less info

TRANS-DAPT DIFFERENTIAL COVER, STEEL, CHROME-PLATED -- Does not include differential cover bolts and gasket; 14-bolt design; This high quality, direct fit OE replacement differential cover gives your undercarriage an unexpected touch of chrome; If you need to replace your gasket, purchase Trans-Dapt differential cover gasket part number T379058; With Trans-Dapt's limited 1 year warranty.

Fits the following 1975-1978 GMC C35 submodels:

• 1975-1978: All Submodels; All Engines;

TIMKEN DIFFERENTIAL REBUILD KIT -- This is a high quality, OE replacement differential rebuild kit.

Fits the following 1975-1978 GMC C35 submodels:

• 1975-1978: All Submodels; All Engines;

FELPRO DIFFERENTIAL GASKET, SOLD INDIVIDUALLY -- This pre-cut OE replacement differential gasket eliminates any need for RTV (Room Temperature Vulcanizing) sealant that can contaminate the differential housing.

Fits the following 1978-1978 GMC C35 submodels:

• 1978-1978: Base; All Engines;
• 1978-1978: High Sierra; All Engines;

• 1978-1978: Sierra Classic; All Engines;

• 1978-1978: Sierra Grande; All Engines;

Fits 2 more submodels. (Show all) Show less info