OK the truck has IRS, from a rx7 i do not like the way the bags are mounted now. i do not get that much lift. where would be the best place to mount the bags to get better lift here are some pics if they help.
That has always been my gripe with factory type IRS set-ups. I would probably just install a 9000series Firestone tapered bag in that same location. It will lift higher and ride nicer.
ive seen quite a few independent rears and they arent designed for alot of lift compared to various links. i'll try and get a pic of my buddies doored yota. hes got an I.R.S. and its somewhat cleaned up since the initial 3 set-ups.........
put it on the arm, theres no reason you cant get good lift...unless the IRS is positioned to close to the ground in comparison to the frame. It should have been put it in with the ability to use its full range of motion