GM’s mid-size suspension is basically a downsized version of the same year full-size platform: upper and lower control arms with torsion bars. This system fits most models and does not require replacement torsion bars. We have found that factory bars, both regular and heavy-duty, will handle basically all driving conditions and yield a superior ride compared to most heavier-rated aftermarket bars.

Front lift is achieved with new torsion bar adjuster arms. The new adjusters’ arm-to-torsion bar mating keys are indexed differently to rotate the bars more and bring ride height up. Ride quality does not suffer since the factory torsion bars are retained. Unless the factory upper control arms are replaced they will continuously “top out” creating a harsh ride and accelerated ball joint wear. Superlift replacement upper control arms cure the suspension travel and component wear problems, and make realignment possible. Constructed of .219" wall thickness DOM tubing and .25" steel plate, the arms have proven to be almost indestructible.

Rear lift options are full-length add-a-leafs, for 1" to 1.5" of lift, and / or 1" lift spring shackles. Add-a-leafs will stiffen ride quality slightly and are the ticket for hauling / towing and to decrease spring wrap-up. Shackles will not alter ride characteristics. Remember that front lift depends on torsion bar adjustment, and that how much lift you attain depends on the starting ride height. For example, if the vehicle has already been raised 1" or so via adjusted-up bars or aftermarket bars, expect a maximum 1" of additional lift.