Chevrolet R30 Differential Pinion Bearing Replacement

with 10.5 (in) Ring Gear with GMC Axle

(10.5" R.G.)

9.5" Ring Gear

with 10.54 (in) Ring Gear with Spicer 70HD Axle

Dana/Spicer 70B, 70 Heavy Duty, 70-3 Heavy Duty Axle

with 10.5 (in) Ring Gear with GMC Axle

10.5 in. 14 Bolt; 2.050 in. O.D. GM 10.5 in.; 14 Bolt Cover; 2.050 in. O.D.

10.5 in. Ring Gear - 1st Design - Thru 1988

Dana/Spicer 60 Heavy Duty Axle

9.5" Ring Gear

(10.5" R.G.)

2nd Design with 10.5 (in) Ring Gear with GMC Axle 1.75 (in) Cone Bore 1.125 (in) Cone Length

Dana/Spicer 70B, 70 Heavy Duty, 70-3 Heavy Duty Axle