For anyone who attempt to use the torsion bar for adjust the front height. When you increase the height of h2 using the screw under the body, verify that the tie rods dont touch the front stabilizer bar with the two front wheel on air (with suspension at full lenght). I have modified this and i have damaged the pitman arms. why ?
On OR the front wheel go on air, the tie rods touch the front bar and can not move. when the wheel touch the terrain cannot move!!!!

Another question ...what is the height of your h2 (no lift and no air suspension) measured from the ground and the red dot on the photo?
My height is 101 cm. on driver side and 102-3 cm. on the pass. side.

For anyone who attempt to use the torsion bar for adjust the front height. When you increase the height of h2 using the screw under the body, verify that the tie rods dont touch the front stabilizer bar with the two front wheel on air (with suspension at full lenght). I have modified this and i have damaged the pitman arms. why ?
On OR the front wheel go on air, the tie rods touch the front bar and can not move. when the wheel touch the terrain cannot move!!!!

Another question ...what is the height of your h2 (no lift and no air suspension) measured from the ground and the red dot on the photo?
My height is 101 cm. on driver side and 102-3 cm. on the pass. side.

i do not have crancked the stabilizer bar (not the torsion). My H2 on the point that i have marked measure 101-3 cm not and i think that is about 2 cm. less than the highest point of the wheel arch. and now is ok.
But if you turn the screw under the body you can lift ... only the body.
I have installed the Rubberduck tie rods. they are great but after i have installed also the edelbrock shock xtreme with reservoir. something have changed something. now if I lift the two front wheels I can not turn the wheels because the inner part of tie rods touch the torsion bar... what is the solution..

Z height ... where I can measure ? and what is the measure ?

I have made a mistake... yes crancked the torsion...turn around the screw...ok

the pics is of the rubberduck, but at the moment i can't make a pics. However i have make a yellow dot on the point. The tie rod and stabilizer bar touch when the wheel go on the air...

Z height is 4.8 inch - 122 mm.
Z height is the n. 4.
But i think that the drawing is wrong !!!
The drawing come from GM !

Phil is right--longer end links.

When you lift the H2 or any IFS, then you need to look at longer sway bar end links. Just go to the Hummer dealer and look at the stock set up for the front sway bar----then just match it with longer links.

Phil:

Even with 2", a longer connector should be considered.

You will get a better, safer ride (better handling) if you implement your solution.

I am an anal fuss pot about correct sway bar position because these beasts are so heavy. Any adjustment that produces correct sway bar position would be helpful. We have modified some kits by using adjustable sway bar end links---in the rear because it means a lot in the rear. Do not want to "get loose" in the rear as they say in NASCAR.

As you know, but others may not know, even a 2" torsion bar adjustment should be followed up by a front end alignment.

Phil:

Good point--we "bounce" (as we call it) our new suspensions around for 100-200 miles, then recheck all connections and get the alignment. We also bounce the new suspension around with the NEW tires and wheels going on the vehicle--not the pre lift tires and wheels.

Phil:
The solution of a longer connector is good and is the same idea of my technician... but we increase only 1". But my problem is ... why i have this problem now?
Stock H2 ..no problem...
RD tie rod ... no problem
cranck torsion bar + new edelbrock xtreme travel with res + steering shock rancho = problem..
I dont think that the steering stabilizer have influence.. the torsion bar now is set to standard position... Edelbrock is the guilty ???

I have make it without any problem.... the problem are when I have increased the height with torsion bar...but is not at the same height that GM says..and when I have replace the shocks...

I am a little confused, granted a little late to the game, but confused nonetheless. I believe you said when the tire is at full droop (tire in the air) is when the tie rod and sway bars hit.

I believe the torsion bar adjustments should have no effect on this since this is a product of the limitation of the suspension, not the pre-load provided by the torsion bar.

It would appear there is the possibility it is the design of those tie rods that is creating the problem. They might not be offering the clearance at full droop that the stock and Fabtech tie rods do.

this is the pics. we have now increased the sway bar connectors... but the lower arms (we call trapezio) have a distance from the ground with stock tires of only 26 cm 10.3" and I have crancked all the torsion bar.. A stock h2 have a clearance of 28 cm in this point.. Someone say that is possible that the first owner (but the H2 have only 1000 km when i have buyed) have change the camm on the torsion bar with another with other design ?!?!?