1981 GMC K1500 equipped with 5.7L V8 Gas OHV, 5.0L V8 Gas OHV, 4.1L L6 Gas OHV
1
Rear
10 Bolt Differential Cover 2.76 Rear Axle Ratio and Greater 28 Spline 8.5 In. Ring Gear w/RPO Code G80 (Positraction/Limited Slip) 4WD
1981 GMC K1500 equipped with 5.7L V8 Gas OHV, 5.0L V8 Gas OHV, 4.1L L6 Gas OHV
Rear
10 Bolt Differential Cover 2.76 Rear Axle Ratio and Greater 28 Spline 8.5 In. Ring Gear w/RPO Code G80 (Positraction/Limited Slip) 4WD