Rough Country PERF663 User Manual
Page 4
IMPORTANT PRE—INSTALLATION INSTRUCTIONS
Prior to beginning this installation it is always good to use a penetrating oil and spray all fasteners that will be re-
moved. Typically the transfer case bolts and the pitman arm are difficult to remove without having done this step.
TOOLS NEEDED:
Prior to beginning installation please re-read the instructions and make sure you have all the tools needed to com-
plete installation. Listed below are the minimum tools required.
• Spring Compressor
• Silicone spray
• Drill assortment
• Hammer
• Combination wrenches
• Torx key socket
• File
• Floor jacks
• Wheel chocks
• 1/2” drill motor
• 11/32” Drill bit
• 17/32” Drill bit
• 29/32” Drill bit
• Torque wrench
• 1/2 drive ratchet and sockets
• Allen wrenches
• Large “C” clamps and /or bench vise
• Heavy duty jack stands
• Safety glasses
• Anti-seize compound
TORQUE SPECS:
Listed below are generic torque specs that are to be used when no specific spec is listed in the instructions. Please
note it is extremely important to tighten all fasteners to the proper specs.
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