How much tire with backspacing - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Doug76 · 02-04-2006, 10:12 AM

Anyone know offhand how much tire you can get on the rear without it coming out the wheelwells with a 15x10 with 3.75" back spacing?

ChevLoRay · 02-04-2006, 10:32 AM

I have 275-60/15's on 15x10's with 4.5" of backspace on my truck. The backspacing you cited will add another 3/4" of offset to the outside, won't it? You should put one of them on your truck and physically check where the outside of the rim is, relative to the fender well opening. Then, you'll be more informed as to how much room you actually will have.

When I ordered my Wheel Vintique wheels, I had a choice of 4.5 or 5-inch backspace. I went with the former.

70short/step · 02-04-2006, 01:06 PM

My truck has 275-60/15's on 15x10's with 4.5" and they stick out about an inch, inch and a half. Wheel vintiques also. Mine is stepside whick i think is narrower outside than wide box. Mine is also 72 model rear which is wider than the early 67-70.

riden2low · 02-04-2006, 03:39 PM

I have 295/50/15 on mine with 10'' wheels but I don't know the back spacing. They fit under there prety nice. No rub. Don't know if being a short wide than to a step side would be any difference.

LUV2XCLR8 · 02-04-2006, 04:53 PM

Quote:

Originally Posted by riden2low

I have 295/50/15 on mine with 10'' wheels but I don't know the back spacing. They fit under there
prety nice. No rub. Don't know if being a short wide than to a step side would be any difference.

Same combo as above on 8" 73 up 4wd rally's, no rubs, looked wicked

02-04-2006, 10:12 AM	#1
Doug76 This S&*! Is expensive! Join Date: Feb 2005 Location: Mechanicsville,Va Posts: 57	How much tire with backspacing Anyone know offhand how much tire you can get on the rear without it coming out the wheelwells with a 15x10 with 3.75" back spacing?

02-04-2006, 10:32 AM	#2
ChevLoRay Old Skool Club Join Date: Jun 2001 Location: Benton, AR "The Heart of Arkansas" Posts: 10,880	Re: How much tire with backspacing I have 275-60/15's on 15x10's with 4.5" of backspace on my truck. The backspacing you cited will add another 3/4" of offset to the outside, won't it? You should put one of them on your truck and physically check where the outside of the rim is, relative to the fender well opening. Then, you'll be more informed as to how much room you actually will have. When I ordered my Wheel Vintique wheels, I had a choice of 4.5 or 5-inch backspace. I went with the former. __________________ Member Nr. 2770 '96 GMC Sportside; 4.3/SLT - Daily driven....constantly needs washed. '69 C-10 SWB; 350/TH400 - in limbo The older I get, the better I was. Last edited by ChevLoRay; 02-04-2006 at 10:35 AM.

02-04-2006, 01:06 PM	#3
70short/step Registered User Join Date: Dec 2003 Location: Stockton, CA Posts: 1,579	Re: How much tire with backspacing My truck has 275-60/15's on 15x10's with 4.5" and they stick out about an inch, inch and a half. Wheel vintiques also. Mine is stepside whick i think is narrower outside than wide box. Mine is also 72 model rear which is wider than the early 67-70. __________________ For every person with a spark of genius, There are a hundred with ignition trouble. 70 Short/Step

02-04-2006, 03:39 PM	#4
riden2low Registered User Join Date: Oct 2002 Location: Portland OR. Posts: 86	Re: How much tire with backspacing I have 295/50/15 on mine with 10'' wheels but I don't know the back spacing. They fit under there prety nice. No rub. Don't know if being a short wide than to a step side would be any difference. __________________ 68 Chevy short wide air cab 4/6 on the drop 327 small block Front disc Frame "c" sectioned Gaylord bed cover

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