GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 GMC C-Series Medium Duty Truck B7 🢒 Suspension 🢒 Tires and Wheels 🢒 GM SPO Group Numbers

Application

GM SPO Group Number

All Studs

5.812

All Disc Wheels

5.803

Cast Wheels

6.307

Valve Stem Cap

5.875

Valve Stem Extension

5.875

Valve Stem Grommet

5.875

Valve Stem Washer

5.875

Wheel Rim Clamp or Spacer

5.839

Wheel Rim Ring

5.839