Hi I'm still pretty new to the lift thing. My friends and I go mudding all the time and I would like to put bigger tires on my truck. It is a 1987 4x4 SR5 5speed. I was planning on buying some $220/set of rockcrawler wagon wheel rims and throwing some 31 x 10.5 on them. Will they fit with stock suspension or do I need a body/suspension lift??
Also what size could I go up to with what lifts?
The biggest tire I will want to run is 33's.

Thank you.
LDeuce.