FRONT AXLE DRIVE PINION AND BEARINGS MAINTENANCE (ALL EXCEPT
l When measuring rotating torque, torque reading needed to start drive
pinion (5) shaft-turning should be disregarded.
l Front shim pack (6 and 17) should be increased to reduce rotating
torque. Front shim pack should be decreased to increase rotating
Measure rotating torque at flange nut
Rotating torque should be
20-40 lb.-in. (2-5 N.m) for new
bearings, or 10-20 lb.-in. (1-2 N.m)
for reused bearings. Adjust front shim
pack (6 and 17) by repeating steps 8
and 9 if specifications are not met.
Remove flange nut (4), washer (16), and flange (2) from drive pinion (5) shaft. Discard flange
Coat lips of new pinion oil seal (14) with molybdenum grease and install squarely into housing
(7) bore until flush with housing, Install flange (2), washer (16), and new flange nut (4).
Tighten flange nut to 255 lb.-ft. (346 N.m).