Pinion Preload and Backlash

DANA MODEL 80 (11-INCH RING GEAR)
PINION BEARING PRELOAD SPECIFICATION
Torque to rotate drive pinion only
New bearings 2.26-4.52 Nm (20-40 lb.in.)
Ratios 4.63 to 5.13 68-90 Nm (6-8 lb.in.)*
*Added to Pinion Torque for Final Reading.
Torque To Rotate Drive Pinion and Differential Case (Less Axle Shafts, New Bearings) 2.26-4.52 Nm (20-40 lb.in.)
Additional Torque to Rotate Required for Differential Bearing Preload (new bearings only) by Ratio: 4.63 to 5.13
BACKLASH
New Gears 0.13-0.23 mm (0.005-0.009 in.)