RING & PINION GEAR SET For GM 8.5/8.6 10-BOLT REAR AXLE
Differential Case Design Type: GM 8.5/8.6 in.
Ring and Pinion Ratio: 4.56:1
Cover Bolts: 10
Ring Gear Bolts: 10
Pinion Spline Count: 30
Ring Gear Rotation: Standard
Ring Gear Teeth: 41
Pinion Gear Teeth: 9
Ring Gear Diameter (in.): 8.500 in.
Pinion Shaft Diameter (in.): 1.626 in.
Built from 8620 gear steel
Notes: Will not work with factory ABS reluctor ring. Must use 2.73:1 or numerically higher ratio carrier.