Differential Case Assembly; Differential Bearing Adjustment; Ring Gear Installation; Ring And Pinion Gear Backlash Adjustment - Jeep 1979 CJ-5 Technical & Service Manual

2F-28 AXLES
(7) Remove tools J-8614-01 and J-22575.
(8) Measure torque required to turn pinion gear us-
ing inch-pound torque wrench and tool J-22575. Correct
pinion bearing preload torque is 17 to 25 inch-pounds
(1.9 to 2.8 N«m) torque. Continue tightening pinion
nut until required preload torque is obtained.
CAUTION: Do not exceed the specified preload
torque
and do not loosen the nut to reduce preload if the speci-
fied torque is exceeded.
(9) If pinion bearing preload torque is exceeded,
remove pinion gear, replace collapsible spacer and pin-
ion nut, and adjust preload again.
Differential Case Assembly
(1) Install differential bearings on case using
Driver Handle J-8092 and Bearing Installer J-21784 (fig.
2F-40).
(2) Install thrust washers on differential side gears
and install gears in differential case.
(3) Install differential pinion gears in case. Install
thrust washers behind pinion gears and align pinion
gear bores.
(4) Rotate differential side and pinion gears until
pinion mate shaft bores in pinion gears are aligned with
shaft bores in case.
(5) Install thrust block in case. Insert block through
side gear bore. Align bore in block with pinion mate
shaft bores in pinion gears and case.
(6) Install pinion mate shaft. Align lockpin bore in
shaft with bore in case and install shaft lockpin.
Differential Bearing Adjustment
(1) Place bearing cup over each differential bearing
and install differential case assembly in axle housing.
(2) Install shim on each side between bearing cup
and housing. Use 0.080-inch (2.03 mm) shims as starting
point (fig. 2F-41).
(3) Install bearing caps and tighten bolts finger-
tight. Mount dial, indicator as shown in figure 2F-42.
(4) Using two screwdrivers, pry between shims and
housing. Pry assembly to one side and zero indicator
then pry assembly to opposite side and read indicator.
N O T E : Do not zero or read indicator while prying.
(5) Amount read on indicator is shim thickness that
should be added to arrive at zero preload and zero end
play. Repeat procedure to ensure accuracy and adjust if
necessary.
(6) Shims are available in thicknesses from 0.080 to
0.110 inch (0.25 mm) in 0.002 inch (0.05 mm) increments.
(7) When sideplay is eliminated, a slight bearing
drag will be noticed. Install bearing caps and tighten
bearing cap bolts to 87 foot-pounds (118 N»m) torque.
(8) Attach dial indicator to axle housing and check
ring gear mounting face of differential case for runout
(fig. 2F-42). Runout should not exceed 0.002 inch (0.05
mm).
(9) Remove case from housing. Retain shims used
to adjust sideplay.
G A U G E
B L O C K \ ,
J - 5 2 2 3 - 2 0
C L A M P A N D B O L T
J - 5 2 2 3 - 2 4 , - 2 9
4 1 4 3 7
Fig. ZF-38 Installing Pinion Depth Gauge Tools
G A U G E B L O C K
J - 5 2 2 3 - 2 0
T H U M B S C R E W
4 1 4 3 8
Fig. 2F-39 Measuring Gauge Block
Ring Gear Installation
(1) Position ring gear on differential case.
(2) Install two ring gear bolts in opposite holes and
tighten bolts to pull gear into position.
(3) Install remaining ring gear attaching bolts.
Tighten bolts to 105 foot-pounds (142 N*m) torque.
Ring and Pinion Gear Backlash Adjustment
(1) Position shims previously selected to remove
differential bearing sideplay on bearing cups and install
differential assembly in axle housing.