8.875 in. 12 Bolt; Standard Open; w/30 Spline GM 12 Bolt Truck; Standard Open Carrier Internal Gear Kit; fits 30 Spline Axles
28 Spline GM 8.5 in.; 28 Spline
33 Spline GM 12 Bolt Truck; Dura Grip Posi Traction Internal Kit; Includes Side Gears; Spider Gears; Thurst Washers; 0.806in. Diameter Cross Pin; and Cross Pin Bolt; Fits 33 Spline Axles
28 Spline; Clutches Not Included GM 8.5 in.; 28 Spline; Clutches Not Included
8.8 in./8.6 in. 10 Bolt; 14 Composite Clutches GM 12 Bolt Truck; 14 Composite Clutches~GM 8.5 in.; 14 Composite Clutches
22 Steel Clutches GM 12 Bolt Truck; 22 Steel Clutches~GM 8.5 in.; 22 Steel Clutches
Positraction Internals; 0.806in. Diameter; w/30 Spline GM 12 Bolt Truck; Dura Grip Posi Traction Internal Kit; Includes Side Gears; Spider Gears; Thurst Washers; 0.806in. Diameter Cross Pin; and Cross Pin Bolt; Fits 30 Spline Axles
8.8 in. 10 Bolt; 18 Steel Clutches GM 12 Bolt Truck; 18 Steel Clutches~GM 8.5 in.; 18 Steel Clutches
Browse our selection of quality spider gear parts designed specifically for your GMC R1500. We carry options across multiple trim levels, body styles, and engine configurations to ensure a perfect fit.
Base · High Sierra · Sierra Classic
Standard Cab Pickup
V6 4.3L · V8 5.0L · V8 5.7L · V8 6.2L
Automatic · Manual
