Three videos to relocate the generator (I suggest 4" back now that I've done it, not 3-1/4") and install a Hellwig 7635 rear sway bar. I had the van on the road for 8 hours this weekend and the swaybar did not hit the generator exhaust despite some rough roads but there will probably be issues when I install a lift kit. There are 2" coil spacer lifts, 3" & 4" front spindle lifts, and 5" & 6" full suspension lifts available for these vans.
You will find some links of manuals and supplies if you open up these videos through YouTube (click on the link above the video).
Cheers, Steve