i hav a 2003 gmc sierra 1500hd 6in lift i found some tires i like for cheap but there for a 15inch rim so i was wondering if with my 2in wheel spaces if i could clear 15inch rims because the tires are soooooooo much cheaper.... please help

 

i highly doubt it. especially since you have the HD brakes. OBS 16s wouldn't even clear the calipers on my NBS

 

No. Hit calipers.

 

16's or bigger man. My bud has a 2006 duramax and he BARELY cleared his 16x8's

 

depends on the wheel since you plan on using spacers. Some wheels will fit, others wont. You can always grind you calipers down.