Can anyone tell me what each turn on the torsion bars equal to in overall lift?

From what i have seen it can vary. just take a measurment befre and crank it a couple times and see what you get. Take the pressure off the bars though, dont just crawl under you truck and start turning. Also over 1.5" IMO is about the limit. any particular q's ask away or do a search on cranking the tbars for a step by step

I was thinking of putting some 285's on , will these fit by only cranking torsion bars if so you know how much?

On stock rims the answer seems to be a yes but you will have to crank the tbars defiantly in the 1.5" range, probably/maybe cut a bit off the plastic on the bumper(or move it forward) and maybe still scrub a wee bit under hard articulation or trurning and hiting a bump at full crank or the like. Lots get by fine. Do a search on 285's and you will have more reading than you ever wanted Edited by: ratlover

For me, one complete revolution of the torsion bar adjusting bolt was equal to exactly 1/2" lift on the front end of the truck. I made two complete 360" turns, and got 1". Not sure if that is the same for everyone or not.


Dennis

thanks guys

You might want to install green keys and then you will not have to worry about it. Just crank those up with room to spare and you will clear those tires and not have to trim as much.

Cranking to the moon and installing green keys and geting x" of lift puts the suspention and the cv's in the exact same angle. Going over 1.5" via either method is a bad idea IMO. And you should be able to get 1.5" easily via just a tbar crank without the green keys. Should....

I agree, too much lift puts the CV's at a really sharp angle. The CV's are strong when they're straight, but put too much angle and a little to much force and you may not like the result. JMO

you need to put a serious amount of angle on the cv's to cause any problems. in the first 100,000 miles after the adjustment anyways. every lifted truck out there has the cv's angled, the more lift, the more of angle. a lot more than you can get with cranking the bars thats for sure. IMO the cv angle is the least of the problems to worry about. the biggest would be topping out the shock and loss of suspension travel by cranking too far. 1.5-2.5 inchs shouldnt worry you.

I have an 02 ext. cab and my broter has an 04 ext. cab and we both have 285's without having to crank the t bars or trimm anything. This is on stock wheels however and I have had two diferent sets on mine with same results it looks close at the air dam but no rubs yet.

05LLY2500HD


I got .25" per turn, about 3-4 revs per inch.


Just as big a problem from lifting is you will top out the shocks, it will ride very badly, unless you modify the shocks/mounts. Plenty to read on this subject.