Rough Country 566.20 - Manual (Page 6)

REAR INSTALLATION
1. Chock front wheels and jack up the rear of the vehicle. Secure with jack stands on the frame rail.
2. Place a floor jack under the rear differential on the rear axle. Using a 18mm wrench for the upper, and 19mm and
15mm wrench for the lower, remove the stock shock absorbers, retain the stock hardware for reuse.
3. Remove the diff vent hose from the differential. See Photo 1.
4. Remove the diff vent tube using a 5/8” wrench. Retain the vent tube for reuse. See Photo 2.
5. Install the supplied bracket in the stock location using stock hardware. Tighten using a 5/8” wrench. See Photo 3.
6. Install the stock brake line bracket to the new bracket with the supplied 7/16” x 1” Bolts, washers and lock nuts and
tighten using 5/8” wrench. Reinstall the diff vent hose as shown. See Photo 4.
7. Using a 24mm socket, remove the stock u-bolts. Use the floor jack to lower the axle assembly to allow for lifted block
installation. See Photo 5. If equipped the factory block will not be reused.
8. Install the Rough Country block in between the factory block /leaf spring and the axle. Jack up the axle and align the
pins in the blocks and axle seat.
9. Install the 7/16” u-bolts and supplied shim plates to secure the block to the springs and install the supplied 5/8” u-
bolts as shown. See Photo 6. Tighten 7/16” hardware using a 5/8” wrench and the 5/8” hardware using a 3/4”
wrench.
Photo 1 Photo 2
Photo 3 Photo 4
Photo 5 Photo 6