Owners manual

10
51947/51947MX
Revised
7.31.08
Carefully remove the differential from the vehicle.
24. On the driver side ONLY
, measure out from the
edge of the rear factory crossmember brace mount
approximately 3” and scribe a line. See ILLUS-
TRATION 2.
25. Using a suitable cutting tool, (abrasive cutoff
wheel, Sawz-all, etc.) cut the frame along the pre-
viously marked lines as shown in ILLUSTRA-
TION 2.
26. Assemble the front differential support bracket
(90-3692) using the supplied bushings (15-11148)
and sleeves (90-2108) from hardware pack (90-
6515). See ILLUSTRATION 3.
27. Rotate the front differential until the case bolt
heads are oriented up. Carefully remove the fac-
tory bolts from the differential as shown in IL-
LUSTRATION 3.
NOTE: You will probably notice some differ-
ential oil seeping from the area where the bolts
are removed. This is normal and not something to
worry about. If you do not stand the differential
as directed, you will see a LOT more oil on your
floor.
28. Place front differential support bracket (90-3692)
on the front differential as shown in ILLUSTRA-
TION 3. Secure support bracket using the sup-
plied 10mm X 60mm bolts and washers, 7/16” X
3” bolt and hardware from pack 90-6251. Torque
these fasteners to 32 ft. lbs. See ILLUSTRATION
3.
29. Install the driver side differential drop (90-3701)
into the factory frame location using the OE bolts
and hardware. Hand tighten only. ILLUSTRA-
TION 4.
30. Using the OE hardware, install the passenger side
differential drop (90-3704) to the factory frame
location as shown in ILLUSTRATION 5.
IMPORTANT: The bracket is slightly ta-
pered. The short end of the taper is oriented toward
the rear of the vehicle.
31. Secure the differential to the previously installed
drop brackets (90-3701 Drvr and 90-704 Pass)
using the supplied hardware. Snug all differential
mounting hardware to secure the differential loca-
tion at this time, but DO NOT
torque at this time.
See ILLUSTRATIONS 6.
32. Check clearance between the differential and the
trimmed area of the frame. If needed, remove
more material until adequate clearance is
achieved.
33. After verifying there is an adequate amount of
clearance, thoroughly clean and paint the trimmed
areas with a good quality paint to prevent rust.
34. Install the front crossmember (90-3684) into the
Illustration 5
Pass Side Differential
Drop Bracket Install
90-3704 Pass
Diff Drop
Bracket
OE
Hardware
Illustration 4
Drvr Side Differential Drop
Bracket Install
90-3701
Driver
Diff Drop
Bracket
OE
Hardware