Backspacing Question... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

KFreddy · 07-01-2005, 10:44 PM

Hi all,

I have a 72' shortbed with a 3.5" front 5" rear drop. I want to purchase a set of 17x9.5" wheels (all around) What backspacing should I be looking for? I am thinking of tire sizes in the 265/55-17 range.

Thanks for any input,

-Fred

CHEVYE · 07-01-2005, 11:52 PM

4.5 or 5" b/s usually does the trick.

KFreddy · 07-02-2005, 07:39 AM

CHEVYE,

Thanks for the reply, now what is it 4.5" or 5"

Thanks,

-Fred

matthufham · 07-02-2005, 02:59 PM

either will work

BraveDave · 07-02-2005, 05:50 PM

I am not sure a 9-1/2" wide rim will work on the front, especially with a 3-1/2" drop. I have a 4" drop on my '72. I have an 8" rim with a 5" backspace. I started with a 4" backspace it the tire rubbed. Remember, a 9-1/2" rim is actually 10-1/2" wide.

07-01-2005, 10:44 PM	#1
KFreddy Active Member Join Date: Apr 2005 Location: Miami, Florida Posts: 286	Backspacing Question... Hi all, I have a 72' shortbed with a 3.5" front 5" rear drop. I want to purchase a set of 17x9.5" wheels (all around) What backspacing should I be looking for? I am thinking of tire sizes in the 265/55-17 range. Thanks for any input, -Fred

07-01-2005, 11:52 PM	#2
CHEVYE my gas saver Join Date: Sep 2003 Location: Clarksville, TN Posts: 2,046	4.5 or 5" b/s usually does the trick. __________________ 85' SWB, 4.3/TH350, getting ready for paint 84`SWB, 462ci./TH400, cowl hood, 15" billet spec., flows, blazer buckets/console, flat black 71`SWB, project ebay feedback

07-02-2005, 05:50 PM	#5
BraveDave Registered User Join Date: Dec 2002 Location: Magnolia, Texas Posts: 336	I am not sure a 9-1/2" wide rim will work on the front, especially with a 3-1/2" drop. I have a 4" drop on my '72. I have an 8" rim with a 5" backspace. I started with a 4" backspace it the tire rubbed. Remember, a 9-1/2" rim is actually 10-1/2" wide. __________________ '72 Chevy Cheyenne Super, '56 Chevy Bel Air,'56 Chevy Nomad, '61 Chevy Impala, '64 Cadillac Fleetwood, 1966 Thunderbird Convertible

07-02-2005, 07:39 AM	#3
KFreddy Active Member Join Date: Apr 2005 Location: Miami, Florida Posts: 286	CHEVYE, Thanks for the reply, now what is it 4.5" or 5" Thanks, -Fred

07-02-2005, 02:59 PM	#4
matthufham Registered User Join Date: Feb 2005 Location: Carl Junction, Missouri Posts: 2,061	either will work



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