Rough Country 577.20 - Manual (Page 12)

7. On some models it will be necessary to mark and drill the holes. If needed drill using a 11/32” bit as shown. See
Photo 5.
8. Reinstall the e-brake cable into the new brackets using factory hardware and 5/16” x 1” bolt, washer &nut. Tighten
factory bolts and new bolts using 24mm and 13mm wrench and reconnect the e-brake cable as shown. It may be
necessary to slightly bend the clip on the e-brake cable to ensure the cable remains on the bracket. See Photo 6.
9. Install new block as shown in Photo 7 with the stock block on top of the new block. Raise the axle using the jack
until axle pins line up with hole and pin in block.
10. Secure block to axle and spring installing the 9/16 x 11” square U-bolts as shown. Tighten nuts to factory torque us-
ing a 7/8” socket. See Photo 8.
11. Install the bushing and sleeves into the shocks and install on the truck with factory hardware. Tighten using 15mm
and a 18mm wrench. See Photo 9.
PHOTO 9
PHOTO 5 PHOTO 6
Bend clip here if necessary
PHOTO 7 PHOTO 8
Drill frame using a 11/32” drill bit E-brake bracket shown installed.
Install factory block on top. Install the supplied u-bolts
Install the Rough Country shock absorbers