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kevinr1970 · 01-05-2009, 07:41 PM

Shot in the dark here...

On my '06 GMC I am running 245/70-17 tires; stock size.
My truck has been lowered 2" front (control arms) and 4" rear (hangers/shackles).
I have found what I think is a pretty good deal on a set of suposedly new 20" take-offs. The '07 or '08 rims that look like the mid-80's Iroc rims.
These rims have the stock 275/55-20 tires.

By my calculations these tires are more than an inch wider (9.6 vs. 10.8) and 1-1/2" taller (30.5 vs. 31.9) than my tires now.

Has anyone run a tire size this large on a truck lowered like mine???
It looks like I have plenty of clearance but I am not sure.

01-05-2009, 07:41 PM	#1
kevinr1970 Senior Member Join Date: Aug 2004 Location: Everett, WA Posts: 2,316	Tire size question Shot in the dark here... On my '06 GMC I am running 245/70-17 tires; stock size. My truck has been lowered 2" front (control arms) and 4" rear (hangers/shackles). I have found what I think is a pretty good deal on a set of suposedly new 20" take-offs. The '07 or '08 rims that look like the mid-80's Iroc rims. These rims have the stock 275/55-20 tires. By my calculations these tires are more than an inch wider (9.6 vs. 10.8) and 1-1/2" taller (30.5 vs. 31.9) than my tires now. Has anyone run a tire size this large on a truck lowered like mine??? It looks like I have plenty of clearance but I am not sure. __________________ 2009 Honda Fit CfC (bsf 44.9 mpg) 2000 Tahoe Limited 1991 GMC CrewCab Dually 2wd, will end up swb, not dually and replace CCswb below 1991 GMC CrewCab Dually 4x4, just going to fix things up for now 1982/1989 K5/GMC Jimmy 2wd 1987 GMC 1/2 ton swb 2wd Crew (sold)