01-06 Chevy/GMC 2500 HD 4x4 3" Suspension lift Installation Part #C9381K

Make sure you park the vehicle on a level concrete or asphalt surface. Many times a vehicle is un-level (side-to-side) from the factory, but usually not noticed until a lift kit has been installed which makes the difference more visible. Using a measuring tape, measure the front and rear (both sides) from the ground up to the center of the fender opening above the axle. Record below for future reference.

FRONT DISASSEMBLY:
1.With vehicle on flat level ground set the emergency brake and block the rear tires. Place floor jack under the lower control arm’s front cross member and raise vehicle. Place jack stands under frame rails, behind the front wheel wells and lower the frame onto the stands.
2. Remove both front factory skid plates located in front of and under the front differential using 15mm socket. (See Photo #1).
WARNING: Be extremely careful when loading or unloading the torsion bars; there is a tremendous amount of stored energy (load pressure) in the bars. Keep your hands and body clear of the adjuster arm assembly and puller tool in case anything slips or breaks.
3. Locate the torsion bar adjuster bolt on the bottom of the rear cross member, measure and record the length of the torsion bar adjusting bolt that is exposed below the nut, and remove the torsion bar adjusting bolt. Apply a small amount of lubricating grease to the puller threads and the puller shaft-to-adjuster arm contact point. Position puller and load adjuster arm until the adjuster nut can be removed from the cross member. With the bar unloaded, slide it further forward into the lower control arm. If the bar seems lodged, use a hammer and punch through the hole in back of the cross member. When the bar shifts forward, the adjuster will fall free. (See Photo #2). Repeat this process on passenger side.

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