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Home >> GMC >> 1997 >> Forward Control 5.7 K, CNG >> Repair and Diagnosis >> Drivelines & Axles >> Differentials & Drive Axles >> Drive Axle - 7 5/8", 8.5", 8 5/8" & 9.5" Ring Gears >> Axle Assembly Specifications

Axle Assembly Specifications

AXLE ASSEMBLY SPECIFICATIONS

Application In. (mm)
Ring Gear Backlash .005-.009 (.13-.23)
Side Bearing Preload
7 5/8", 8 1/2" & 8 5/8" .008 (.20)
9 1/2" Zero plus 3 Slots
INCH Lbs. (N.m) 
Pinion Bearing Preload (1)
7 5/8" Ring Gear
New Bearings 24-32 (2.7-3.6)
Used Bearings 8-12 (1.0-1.4)
8 1/2", 8 5/8" & 9 1/2" Ring Gear
New Bearings 20-25 (2.3-2.8)
Used Bearings 10-15 (1.1-1.7)
(1) Preload measurement is torque needed to turn pinion in housing without differential case and ring gear installed.