Rough Country 747.20 - Manual (Page 6)

26. Starting from the edge of the cam bolt plate on the back side of the rear cross-member make a mark at 3” and another mark at
12”. This is where the rear cross-member needs to be cut to allow the diff to drop down. See Photo 12.
27. Take a reciprocating saw and cut straight through the marks at 3” and 12”.
28. Insert two of the supplied bushings and one sleeve into the front diff mount from 1746bag2. Use the 9/16 x 3.5” bolt, washers,
and locking nut to secure the mount to the front cross-member. Hand tighten using a 21mm and 22mm socket and wrench. See
Photo 13.
29. Raise the diff back into the correct locate while sitting on the jack.
30. Insert the rear cross-member into the frame using the supplied 9/16 x 5” bolts, washers, and locking nut from 1746bag1 on each
side. Hand tighten with a 21mm and 22mm socket and wrench.
31. Insert the front cross-member into the frame using the supplied 3/4 x 4.5” bolts, washers, and locking nut from 1746bag1 on
each side. Hand tighten with a 1 1/8” and 1 1/16” wrench. See Photo 14.
32. Lower the diff into place and use the stock hardware to secure the rear of the diff to the rear cross-member. Hand tighten with a
12mm Allen socket.
33. Using the supplied 14mm x 25mm bolts and washers out of 1746bag2 secure the front driver diff mount to the diff. Tighten us-
ing a 21mm socket.
34. Insert the supplied bushings and sleeves into the passenger side diff mount from 1746bag2. Using the supplied 9/16 x 3.5” bolts,
washers, and locking nuts from 1746bag2 mount the diff bracket into the front and rear cross-member. Hand tighten using a
21mm and 22mm socket and wrench. See Photo 15.
35. Use the factory hardware and a 19mm socket to bolt the passen-
ger side diff to the mounting bracket. Plug the vent tube and the
diff actuator back into the diff. Make sure the vent hose and
wiring are not rubbing on any moving parts and they have slack
in them. Use a 12mm socket to tighten the actuator and top vent
tube.
36. Attach the front driveshaft to the diff using factory hardware
and a 14mm socket.
37. Insert the driver and passenger side lower control arm into the
cross-member pockets and secure with the factory cam bolts.
Hand tighten. See Photo 16.
38. Now you can go back and torque all the diff and upper cross-
member bolts to the correct specs.
PHOTO 13 PHOTO 12
PHOTO 14 PHOTO 15
PHOTO 16