Rough Country 637 - Manual (Page 2)

FRONT INSTALLATION INSTRUCTIONS
1. Chock the rear wheels and jack up the front of the vehicle and support the vehicle with jack stands so that the front
wheels are off the ground.
2. Using a 19mm deep well socket remove the front tires/wheels,
3. Using a 18mm socket and wrench remove the bottom sway bar bolts. Retain hardware for later use. See Photo 1
4. Using a 18mm socket and wrench remove the lower shock bolt. See Photo 2. Retain the lower hardware for reuse.
5. Using a 10MM socket, remove the brake line bracket from
the stock location.
6. Push down on the axle to allow room for the coils to be re-
moved. Remove coil springs, and factory spring isolator.
7. Install the new spacer over the factory bump stop with the
factory isolator as shown See Photo 3.
8. Reinstall the factory coil spring. Be sure to rotate the spring
until the pigtail hits the stop. See Photo 4.
9. Install the brake line extension bracket with the stock hard-
ware to the frame. Install the stock line to the bracket with the
supplied 1/4” x 1’ bolt, washers and nut. See Photo 5.
Photo 1 Photo 2
Photo 3
Photo 4
Tools Needed:
10mm Wrench
14mm Socket
16mm Wrench
16mm Socket
18mm Wrench
18mm Socket
19mm Deep Well Socket
Jack
Jack Stands Size Grade 5 Grade 8
5/16” 15 ft/lbs 20 ft/lbs
3/8” 30 ft/lbs 35 ft/lbs
7/16” 45 ft/lbs 60 ft/lbs
1/2” 65 ft/lbs 90 ft/lbs
9/16” 95 ft/lbs 130 ft/lbs
5/8” 135 ft/lbs 175 ft/lbs
3/4” 185 ft/lbs 280 ft/lbs Class 8.8 Class 10.9
6MM 5 ft/lbs 9 ft/lbs
8MM 18ft/lbs 23 ft/lbs
10MM 32ft/lbs 45ft/lbs
12MM 55ft/lbs 75ft/lbs
14MM 85ft/lbs 120ft/lbs
16MM 130ft/lbs 165ft/lbs
18MM 170ft/lbs 240ft/lbs
Torque Specs:
Photo 5