I know Rockstomper makes one for lifted trucks with a 4" Trailmaster or Procomp lift, allows for more travel w/ifs, you can see it here http://www.rockstomper.com/catalog/suspen/ifskit.htm
I am not sure if it can be modified for a stock rig or not. It wont lift the truck much, however, if all you are wanting to run are 32's, they will fit with a little trimming of the rear fender body seam. I ran the 32's on my '90 x-cab on 15x8 w/3.75 back spacing, and after cutting the seam a little they didn't rub.

More than tread lightly. Leave it like you were never there, nor anyone else.
'90 X-cab 4.88's 33 BFG AT's, rr ARB, Headers, Ignition upgrade, cold air induction.
'91 X-cab 5.29's 315's BFG MT's, rr ARB, custom bumper and flatbed