i went through this same thing last month
i went to Discount Tire & asked about getting 18" rims to replace my 20"
i wanted to keep the same ride height
my thinking was that 18" wheels were much cheaper than the 20s & i could save money
now came the part that people that sell rims don't tell you
now you need tires for use with the 18" rim, to keep the same ride height, the tire sidewall has to be taller & the taller the sidewall, the more expensive the tire
i will let someone else tell you what width & height that you can use without rubbing issues
if you go with new rims, pay attention to the OFFSET
Ram 1500 SLT Quad cab, 5.7 HEMI(R) MDS VCT, 5 speed auto 545RFE, 3.55 differential gears, 18" Magnaflow muffler, EGR bug deflector, Bushwacker fender flares, customized Nfab nerf bars, CB radio, Autonet wi-fi router, custom soft tonneau cover, Line_X bedliner, DEBO Step, build date 10/15/08 a Wednesday
Last edited by GTyankee; 03-31-2011 at 06:25 PM.