Dodge RAM TRUCK 1500 1995 Service Manual page 168

3 - 48 REAR SUSPENSION AND AXLE
B R
POWER-LOK MODEL 70 AXLE AND TRAC-LOK
MODEL 10 AXLE
The Trac-Lok differential for the Model 80 axle
looks like the Power-Lok differential for the Model 70
axle but their are differences.
The Model 80 Trac-Lok differential has a one-piece
cross shaft and uses 6 disc and 5 plates for each
clutch pack. Only one disc in each clutch pack is
dished.
The Model 70 Power-Lok differential has a two-
piece cross shaft and uses 2 disc and 3 plates for
each clutch pack. All disc are dished in this unit.
DISASSEMBLY
Pay close attention to the clutch pack ar­
rangement during this procedure. Note the di­
rection of the concave and convex side of the
plates and discs.
(1) Mark the ring gear half and cover half for in­
stallation reference (Fig. 18).
J9203-72
Fig. 18 Case Marked
(2) Remove the case attaching bolts and remove
the button cover half (Fig. . 19).
(3) Remove the pinion mate gear, side gear (clutch)
ring and clutch pack cross shaft (Fig. 20, 21). Keep
these parts with the button cover half for correct in­
stallation in their original positions.
(4) Remove the same parts listed above from the
ring gear flange half of the case. Keep these parts
with the flange cover half for correct installation in
their original positions.
CLEANING AND INSPECTION
(1) Clean all components in cleaning solvent. Dry
components with compressed air.
CLUTCH
PLATES
BUTTON
HALF
FLANGE
HALF
J9203-73
Fig. 19 Cover Half Removal
(2) Inspect clutch pack plates for wear, scoring or
damage. Replace both clutch packs if any one compo­
nent in either pack is damaged.
(3) Inspect side and pinion gears. Replace any gear
that is worn, cracked, chipped or damaged.
(4) Inspect differential case and pinion shaft. Re­
place if worn or damaged.
ASSEMBLY
The clutch discs are replaceable as complete sets
only. If one clutch disc pack is damaged, both
packs must be replaced. Lubricate each component
with gear lube before assembly and installation.
(1) Saturate the clutch plates with Hypoid Gear
Lubricant or Additive. Assemble clutch packs into the
side gear plate in exactly the same position as re­
moved (Fig. 20, 21, 22).
(2) Line up the plate ears and install the assem­
bled pack into the flange half (Fig. 23). Make sure
the clutch plate lugs enter the slots in the case.
Also make sure the clutch pack bottoms out on
the case.
(3) Install pinion mate shafts and pinion mate
gears (Fig. 24).Make sure shafts are correctly in­
stalled according to the alignment marks.
(4) Lubricate and install the other side gear and
clutch pack as done above in Step 3.
(5) Correctly align and assemble button half to
flange half. Install case body screws finger tight.
(6) Tighten body screws alternately and evenly.
Tighten screws to 89-94 N-m (65 to 70 ft. lbs.) torque
(Fig. 25).
If bolt heads have 7 radial lines or the number 180
stamped on the head, tighten these bolts to 122-136
N-m (90 to 100 ft. lbs.) torque.