GM Service Manual Online
For 1990-2009 cars only

GM SPO Group Numbers

Application

GM SPO Group Number

Differential Carrier (To Rear Axle) Includes Washers

5.505

Differential (To Rear Axle) Bearing

5.536

Differential Case Bolt

5.510

Differential (To Rear Axle) Case

5.510

Differential Drive Pinion Gear Thrust Washer

5.542

Differential Drive Pinion Gear Outer Bearing

5.447

Differential Pinion Gear (To Rear Axle) Shaft

5.517

Differential Ring and Drive Pinion Gear Set

5.529

Differential Side Gear

5.528

Differential Side Gear Thrust Washer (To Rear Axle) Outer

5.542

Rear Axle Housing

5.387

Rear Axle Housing Drain Plug

5.400

Rear Axle Housing Fill Plug

5.400

Rear Axle Pinion Oil Seal

5.469

Rear Axle Shim (1.12 mm Thick)

5.460

Rear Axle Shim (1.18 mm Thick)

5.460

Rear Axle Shim (1.24 mm Thick)

5.460

Rear Axle Shim (1.3 mm Thick)

5.460

Rear Axle Shim (0.30 mm Thick)

5.460

Rear Axle Shim (1.15 mm Thick)

5.460

Rear Axle Shim (1.27 mm Thick)

5.460

Rear Axle Vent Hose

5.387

Rear Vent Hose Clamp

5.387