Specifications

Assembly and Installation
50 MAINTENANCE MANUAL
1. Expand the ring gear by heating the gear in a
tank of water to 160-180°F (71-82°C) for 10 to
15 minutes.
WARNING
Wear safe clothing and gloves for protection
frominjurywhenworkingwiththehotringgear.
2. Use a lifting tool to safely lift the ring gear from
the tank of water.
3.Install the ring gear onto the ange case half
immediately after the gear is heated.
• Iftheringgeardoesnotteasilyonthecase
half, heat the gear again.
4.Aligntheringgearandangecasehalffasten-
er holes. Rotate the ring gear as necessary
NOTE:
If rivets were used to hold the ring gear
to the ange case half, replace them with
bolts, nuts and washers. For 140 Series dif-
ferential with rivets are serviced with bolt
kits for reassembly.
5. Install the bolts, nuts and washers, if equipped,
thatholdtheringgeartotheangecasehalf.
Install the bolts from the front side of the gear.
The bolt threads must be installed from the in-
side face of the ring gear and the nuts tightened
from the back of the ring gear. Figure 5.19.
6. Tighten the bolts and nuts, if equipped, to the
correct torque value. See to Section 8
7. Inspect for gaps between the back surface of
theringgearandthecaseange.Usea0.003-
inch (0.080 mm) feeler gauge to inspect at four
points around the assembly. Figure 5.20.
• If the gaps exceed specication, inspect the
angecasehalfandringgearfortheproblem
that causes the gap. Repair or replace parts as
necessary. Reassemble the ring gear on the
angecasehalf.Reinspectforgaps.
8. Use a press and the correct size sleeve to in-
stall the bearing cones in the both of the case
halves. Figure 5.21.
Figure 5.20
Figure 5.19
RING
GEAR
FLANGE
CASE HALF
BOLT HEAD
INSTALLED
FROM FRONT
OF GEAR
CHECK FOR
0,003” (0,080 mm)
GAP AT FOUR
LOCATIONS.
Figure 5.21
SLEEVE
PRESS
BEARING
CONE
CASE HALF
SUPPORT
SUPPORT