Torsion bar question
 

Hey guys. I just bought an '89 K1500 from my buddy. He thought that he would put a lift on it by putting 2" blocks in the rear and tightening up the torsion bar adjusting bolts for the front. Well, it worked, but rode like crap. Rough as all get out. I pulled the "lift" off of it, but I would like to know exactly where the adjusting bolts are supposed to be. Could somebody count the number of threads between the head and adjuster for me? Or maybe measure it? I would greatly appreciate it. Thanks.

Re: Torsion bar question
 

every truck is different, lower it down a couple threads at a time til you get it where you want it, then have it aligned.

Re: Torsion bar question
 

I would think that the factory would have some type of specification for it though. Like all the 1500's "X" amount of turns and all 2500's "X" amount of turns. It would be great if someone had an identical truck to mine and could give me some kind of baseline to go off of. I'm pretty happy with it now, but I'm one of those people who likes to keep everything stock. Well.....with the 89 anyway. The 67 is a different story.

Re: Torsion bar question
 

If you look at the lower control arm and bumpstop there should be about 1 inch or so clearance between the two with the truck sitting on the floor for a stock suspension. This is about the same on my 97 K Burb and 2000 GMC Z71. This should give you something to aim at. When adjusting the torsion bar bolts I raise one side of truck to let the wheel fully drop down. It makes turning the adjuster bolt easier. Lower it and have a look. I made 3 turns on my Burb bolts and it raised the front almost 2 inches.

Re: Torsion bar question
 

Thanks Boog! That's what I wanted to know.

Re: Torsion bar question
 

IMO just back them out haflway or 1/2 of threads showing and see where it is then fine tune it. Even if you had gm specs or another identical vehicle what works for them or back then may not work the exact same for you. Over time they sag and every truck is different. Make sure to drive it some to settle them, and once done get an alignment done.