all i can add to this bit of info is
i installed a BDS 5.5" lift for a guy 1 time on a s10 pickup . . . . . NEVER AGAIN !
all that work and modifications just do a SAS and be done !
not that ifs lifts suck as most are fairly easy to install and that BDS makes great stuff . its just the ifs system on a s10 is super tight and cramped up .