35's?
 

I have several friends that own stock 4x4 97-2003 trucks and crank their t-bars and fit 35's on OEM wheels. Could I get a 3 inch body lift and a 2 inch spacer with 3 inch blocks in the rear and fit 35's on my 97-03 4x2?

Yes, if you use the OEM wheels. Personally, I think a set of 33's on wider aftermarket wheels would look better.

I agree with Wandell and with a wider aftermarket wheel you will probably get better tire wear. Sometimes with the tall skinny look you will wear out the center of the tires faster than the outside.