Rough Country 257.20 - Manual (Page 6)

REAR INSTALLATION
1. Chock the front wheels.
2. Place a floor jack under the differential and jack up the rear of the vehicle.
3. Place jack stands under the frame rails and lower onto the jack stands.
4. Remove the tires/wheels.
5. Remove the factory shock absorbers using a 21mm wrench & socket. Retain the factory hardware for reuse.
6. Remove the factory u-bolts using a 21mm socket, then remove the factory blocks. Lower the axle using the floor jack to
allow for the new 3” block to be installed.
7. Install the block on the factory spring pad with the flat part of the block on the spring and the thinner end towards the
front. Jack up the axle to meet the springs, making sure to align the center pin. See Photo 1
8. With the floor jack applying slight pressure to the rear axle to keep the pin aligned, install the new supplied u-bolts and
tighten in a crossing pattern, using a 7/8” socket.
9. Locate the new shock absorbers part # 658726, and install the shock absorbers in the factory mounting locations using
the factory hardware. Tighten using a 21mm wrench & socket. See Photo 2
10. Install the tires/wheels.
11. Jack up the vehicle to remove the jack stands. Remove the jack stands and lower the vehicle to the ground.
POST INSTALLATION INSTRUCITONS
1. Lightly grease the ball joints. Do not over grease the ball joint as this could cause ball joint boot failure.
2. Have a qualified alignment center align the vehicle immediately.
3. Have headlights adjusted to proper settings.
4. Wheels must be retighten at 50 miles.
5. All kit components must be retightened at 500 miles and then every three thousand miles after installation. Periodically
check hardware for tightness.
6. Install “Warning to Driver” decal on sun visor.
7. On some vehicles the front lower skirting will need to be trimmed if using certain wheel /tire combinations and with
heavy offset wheels. Trim only as needed.
Photo 2 Photo 1