cranking torsion bars to avoid grinding

greenbuck50 · August 2, 2004

hey guys... I have a 2002 Sierra 1500 Z71 and my friend has a 2000 Silverado 1500 4x4, and his dad has a 1999 Silverado 2500 4x4. He pointed out to me tonight that he and his dad cranked the torsion bars in the 2500 Silverado to avoid grinding in the IFS from the truck being to low. I am not sure how he found out to do this, and pointed out this his 1500 Silverado and my 1500 Sierra could use some cranking of the torsion bar to avoid grinding on them also. I am not sure exactly what is grinding together due to this, but thought you all could give me some information about this and your advice/suggestions on pros and cons and what to do. Thanks a lot and have a good day! Let me know if you need any other pieces of info.

Wingnut · August 2, 2004

I don't know about "grinding", but they may be talking about larger than stock tires rubbing the airdam.

Many people here have cranked their torsion bars (me included) in order to level the truck out and/or give a little more clearance for larger tires.

GMCSierra04 · August 2, 2004

How much does the avg. person crank up there torsion bars. I know it depends for different applications but just a general idea. I dont mean to get off track.

Valsport · August 2, 2004

a safe range is between 1 and 2 inches higher than stock. Any more and you'll get some bad cv and ball joint angle which will accelerate wear.

greenbuck50 · August 3, 2004

hey guys... I talked to my friend about it some more tonight, and he said that he cranked his torsion bar to avoid grinding of the bumper against the independent front suspension. Does that help you guys a bit more on why he would do this? Thanks a lot.

GMCSierra04 · August 3, 2004

Grinding the bumper against the IFS? That makes no sense to me at all. He would get increased ground clearance for the underbody but not on the lower control arms which don't get any lift unless bigger tires are on. If you do crank on the torsion bars make sure the front end gets an alighnment, it'll chanbge your toe and camber angles.