Tire size and wheel backspacing on 20's? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

bagged81 · 06-03-2004, 01:37 PM

I need to buckle down and order some wheels soon and I would like to know what tire size looks good. I would like photos if possible. For you guys that are bagged and on 20s, what backspacing works. My 17's have a 4" spacing and it works but I think that I would like a little more room between the tire and fender.

Here's what I am thinking, 255/45/20 tire and 4-20x8 with 4.5" backspacing.

SCOTI · 06-03-2004, 06:17 PM

If I wasn't concerned about potholes..... up front would have 20x8's w/5"bs & 245-40's. But, since I worry about the sidewall height vs. potholes & like to drive it as much as possible, I went w/18x8's w/245-45's.

I do have 20x10's out back on mine w/the equivelent of 5" bs & 295-40's.

There's no way 245-45-20's would fit under my front wheelwells.

bagged81 · 06-04-2004, 10:56 AM

Thanks SCOTI.

06-03-2004, 01:37 PM	#1
bagged81 Signals in the bumper. Join Date: Feb 2003 Location: East TN Posts: 856	Tire size and wheel backspacing on 20's? I need to buckle down and order some wheels soon and I would like to know what tire size looks good. I would like photos if possible. For you guys that are bagged and on 20s, what backspacing works. My 17's have a 4" spacing and it works but I think that I would like a little more room between the tire and fender. Here's what I am thinking, 255/45/20 tire and 4-20x8 with 4.5" backspacing. __________________ Jeff C. 1981 Chevrolet Silverado - Under major construction...again. link 1962 Chevrolet Impala 4D Sedan moredoorclassics.com 1936 Ford Pickup - Frame-off in progress link 1979 Chevrolet Camper Special Flatbed link

06-03-2004, 06:17 PM	#2
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,071	If I wasn't concerned about potholes..... up front would have 20x8's w/5"bs & 245-40's. But, since I worry about the sidewall height vs. potholes & like to drive it as much as possible, I went w/18x8's w/245-45's. I do have 20x10's out back on mine w/the equivelent of 5" bs & 295-40's. There's no way 245-45-20's would fit under my front wheelwells. Attached Images __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.*

06-04-2004, 10:56 AM	#3
bagged81 Signals in the bumper. Join Date: Feb 2003 Location: East TN Posts: 856	Thanks SCOTI. __________________ Jeff C. 1981 Chevrolet Silverado - Under major construction...again. link 1962 Chevrolet Impala 4D Sedan moredoorclassics.com 1936 Ford Pickup - Frame-off in progress link 1979 Chevrolet Camper Special Flatbed link



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