[Boog]

I also am average height and not a lifted truck fan so I looked into lowering my 2000 GMC 4wd. Stock suspension with larger 285 tires, came with them. I am breaking the corner of the driver seat down by having to lean on it so much getting in and out. It's harder for the wife to get in and I do not want nerf bars or boards on it so I slid under there to see what I could do to it to get a couple of inches down. I cranked the front torsion bars down for a couple of inches and removed the 2" blocks in the rear and it achieved what I wanted but it was riding on the front bumpstops and after a couple of days I put it back and decided the better way to do this is with lowered front spindles. It is documented in the following thread.There have been a couple of threads about lowering 4wds the last couple of years like this one. http://67-72chevytrucks.com/vboard/s...d.php?t=422600

No threads for the 3/4 tons in particular that I am aware of although I believe there are suspension parts for them.
Bell Tech, McGaughys and others sell lowered suspension parts. Use the forum search feature above for "dropped suspension" or "lowered suspension kits" and you are bound to find other threads that might be of help.