Saw this section, and thought I'd post a link to something I made a few years ago while I had my lowrider S15. You can raise or drop the truck on 3 sets of rims in flash, one of which you can spin. I HIGHLY recommend doing this before buying your rims... You can do a simple rim check in Photoshop, instructions are probably on the board somewhere. anyway, check this out -
http://www.ncmedia.ca/mytruck.swf -make the window smaller though so the quality increases and the pics look better.
Cheers.
NC.