Stock is 35" and 36-37" will work stock so 15X38.5 groundhogs or something along that size w/ the right offset should work.
Only certain companies 16.5 rims will fit w/o grinding the calipers.
My local tireshop lets me try different ones so I can see what works.
try here
rancho lift
Yell'r 04 Lux w/ air, sunroof,F&R brush bars
Traded 03 White Lux
03 GMC D/A CC SLT LB soon to be 04
[This message was edited by DURAMAX TIM on 11-23-03 at 09:32 AM.]