so i swapped out the prothane 7-206-BL bushings and went with energy suspension 3.3185G for hummer h2, only have one side done .but here are the differences.
update* huge difference in handling what i thought was just cons from running huge tires,was actually these bushings.it would shimmy a little at 65-70mph and act a little weird on big bumps.
i can now tell the shimmy is coming from the rear,none in front anymore,drives straight,and bumps feel amazing compared to the weird slight rocking before.
was a pain to redo these if your running forged arms get the correct bushings!!