Assembly Of The Rear Axle - GMC T Series 1994 Repair Manual

ASSEMBLY OF THE REAR AXLE

PINION ASSEMBLY
Install or Connect (Figures 1 and 9 through 13)
-►4"
Tools Required:
J 24433 Rear Pinion Bearing Cone Installer
J 8092 Driver Handle
J 8608 Outer Pinion Bearing Cup Installer
J 8614-01 Pinion Flange Holder
• Lubricate all parts with axle lubricant.
1. Pinion rear bearing (13) onto the pinion.
• Press the bearing onto the pinion using J 24433
(figure 9).
2. Outer pinion bearing cup (6) using J 8608 and
J 8092.
3. Inner pinion bearing cup (13) using J 24432 and
J 8092.
4. A new collapsible spacer (12) to the pinion.
5. Pinion (14) into the cage (10).
6. Pinion outer bearing (6) onto the pinion.
• Press the bearing onto the pinion.
7. Pinion oil seal (5) using J 24433 and J 8092.
8. Pinion flange oil deflector (4) and pinion flange (3)
to the pinion splines.
9. Washer (2) and pinion nut (1).
A. Place the pinion cage assembly into the vise.
B. Flange holder J 8614-01 to the pinion flange.
Tighten (Figure 10)
• The nut until the pinion end play is taken up.
Rotate the pinion while tightening in order to
seat the bearings. Once there is no end play in
the pinion, the preload torque should be
checked.
• Remove J 8614-01. Using an inch-pound torque
wrench, check the pinion preload by rotating the
pinion with the wrench. Preload should be at or
below 2.8 to 4.0 N-m (25 to 35 lbs. in.) for new
bearings, or 0.56 to 1.7 N-m (5-15 lbs. in.) for
used bearings (figure 11).
• If the preload torque is below the values given
above, continue torquing the nut in small incre­
ments. Check the preload after each tightening.