OK so here is the deal (before the flame the hell out of you)

Since your truck is a 2000 31's will fit with some fun with a reciprocating saw. 2002 up until the re-design will fit 31's no problems.

32's will fit with a combination of things. A 3in suspension lift, a PML with no body lift for 2002 and up or with a body lift for 2002 and below, or some other combination of suspension lifting, body lifting, and cutting.

Do yourself a favor just go with the full 3in lift or try and piece on together from the buy and sell thread.

I would recommend just buying the new torsion bars, and AAL's from Calmini putting them on and just keep on looking for the UCA's and shackles on the site, they do come up every now and then.

Not to be an ass but just and FYI some people here dont irked with this kind of question but just check the top of the Tires section and it will have all the information you need.

Good Luck!!!

Tim