http://www.306gti6.com/forum/showthread.php?id=63880&page=1
You need a torsion key.. most mechanics can twist the bar for cheap
There is a bolt near rear of torsion bar (the end closer to rear bumper) which will increase or decrease the tension on torsion bar when you adjust bolt.
The Torsion bar is a suspension component. It essentially "twists" ever so slightly to adjust ride height. This is adjusted by a special tool specific to the manufacturer.
Yes you can Adjust the torsion bar to raise it. I did this on my 1 ton Chevy to raise the front end. I had an alignment right after and it has worked great ever since.
torsion bars only exist on 4WD dakotas....2WD have coils
Under vehicle by end of torsion bar (side closer to rear of vehicle) there should be a 6-point bolt which when tightened or loosened will apply more or less tension to torsion bar.
go to this website www.planetisuzoo.com and slowly scroll down to Isuzu Torsion bar adjustment that is where you should find your answer to this question.
Good info about raising front end by adjusting torsion bars.www.duramaxforum.com/forum/04-5-05-lly-performance-parts-discussion/4491-torsion-bar-adjustment.html
as the rear is torsion it is not straight forward. the torsion bars have to be removed one side at a time, with the torsion bar out simply adjust hub the required amount and replace torsion bar. then do the other side. this can be hard as the bars can be difficult to remove. best left to professional should cost between £60-£100
You remove the metal retaining clips on the back side of the frame / cross member that stop the torsion bar from sliding out. Figure out a way to clamp something to the torsion bar and smack it with a hammer driving the torsion bar towards the rear of the car. PS they do sell tools made to clamp on to the torsion bar. I would also suggest having the wheels off the ground and hanging. Also loosen the nut that adjust the ride height.
The 1st generation Nissan Pathfinder, 1987 - 1995 had a torsion bar suspension on the front end of the vehicle. There is a driver's side and passenger's side torsion bar and they are not interchangeable. 1996 - 2009 models do not use a torsion bar.
on the new body style 1500 trucks there is no torsion bar. there is now a coil over suspension. to raise it and level the truck you will need a "leveling kit" typically comprised of a metal spacer that will sit above the coil over.