02-06 Chevy/GMC 2500HD Torsion Bar Adjuster Kit
As a general rule, the taller a vehicle is, the easier it will roll. Offset, as much as possible, what is lost in rollover resistance by increasing tire track width. In other words, go “wide” as you go “tall”. Do not add, alter, or fabricate any factory or after-market parts to increase vehicle height over the intended height of the Rough Country product purchased. Mixing component brands, lifts, and/or combining body lift with suspension lifts voids all warranties. Rough Country makes no claims regarding lifting devices and excludes any and all implied claims. We will not be responsible for any product that is altered. Braking performance and capability are decreased when significantly larger/heavier tires and wheels are used. Take this into consideration while driving.
The required installation time for this system is approximately 2 hours (see recommended tool list shown below). This kit is usually sold as a front end leveling kit, but can be sold in combination with rear blocks and u-bolts or a rear add-a-leaf. Shocks with longer travel are recommended. This suspension system was developed using 285×75R16 tire on an 8”wheel. Before installing other combinations, please consult your local tire and wheel specialist. If questions exist we will be happy to answer any questions concerning the design, function, and correct use of our products.
INSTALLATION INSTRUCTIONS
1. Place the vehicle in neutral. Raise the front of the vehicle with a jack to slightly raise the tires of the ground and support the frame with jack stands beneath each frame rail behind the lower control arms. Installation is done one side at a time, starting with the driver side. The torsion bar adjusters are under the cab of the vehicle at the rearward end of the torsion bars.
2. Measure or make a note of how much thread is remaining on the torsion bar adjuster bolt. You will reset the bars at this same location with the new adjusters. Use extreme caution when loading and unloading the torsion bars; there is a tremendous amount of energy stored in them. Keep your hands and body clear of the adjuster arm assembly and the puller tool in case anything slips or breaks. Note: Because of the extreme loads generated by the torsion bars on these vehicles, a standard tow-jaw puller may bend the “lips”of the cross member and my pop out of place. For best results use a torsion bar puller tool. If you cannot find one locally, this tool (J-22517-C) is available from Kent Moore Tools in Roseville, Michigan (800-345-2233) or a Ball Joint Remover like OTC7249 can be used.
3. On the driver side, using a torsion bar removal tool, remove the stock torsion bar adjuster. Loading the torsion bar using the tool, removing the bolt and nut block, does this. Unload the bar; slide the torsion bar forward allowing the OE torsion key to fall out.
4. Install the new torsion bar adjuster using the torsion bar tool. Reinstall the threaded block and adjuster bolt.
5. Repeat steps for passenger side. Making sure the driver and passenger side torsion bar adjuster bolts are adjusted the same amount. Fine-tuning is done in a later step.
6. After the torsion bar adjusters have been installed and tightened to the factory measurement taken in step #2.
7. Jack up the front of the vehicle and remove the jack stands. Lower the vehicle to the ground to where the torsion bars are supporting the weight of the vehicle. Check for level.
8. Additional adjustment may need to be performed to level the vehicle by either tightening or loosening the torsion bars. This is done with a floor jack supporting the side of the vehicle that is being adjusted, raising the tires slightly of the ground and only adjusting the bolt 1-2 turns at a time to ensure the leveling of the truck. After adjustment lower the vehicle to the ground and recheck for level. This may take several attempts.
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