Backspacing, Offsetting, Backsetting, Offspacing, Backoff, Spacing Setting Confused!? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

eightyfive · 06-06-2010, 12:16 AM

hey every one, i need some help getting this through my head.
What is the difference bewteen backspacing and offsetting, what do they mean?

Im gunna be gettin new wheels for my sierra classic and i want them to stick out as far as they can. (only on the back, the front can stay tucked in) Im gunna get 10" rims for the rear and 8" rims for the front. So wat backspacing or offsetting would i need to get my rear wheels to stick out of the fender?

Sorry for the long story, but thanks for the help

westofb · 06-06-2010, 12:29 AM

Back spacing is the distance from the back bolt face of the wheel to the rear wheel lip. Offset is the amount the back bolt face of the wheel is offset from the center of the wheel. 8" ralleys have 4" back spacing and their offset would be zero. I can't remember which is which off top of my head but postive and negative offset has to do with how much the bolt face (the are of the wheel that sits on the hub) is offset from center.

ElGracho · 06-06-2010, 12:38 AM

http://tinyurl.com/28p75mv

**N2TRUX** · 06-06-2010, 01:18 PM

And just so you know, the more the wheels stick out from under your truck, the more crap the tires will sling on your paint. Maybe it's a regional thing, but where I am from that look is considered a "Hillbilly Hauler".

eightyfive · 06-06-2010, 03:44 PM

Thatss true about the hillbilly hauler thing, but i like that look haha. wat backspacing would i need to get them to stick out the side like that?

slugish · 06-06-2010, 11:09 PM

10 in rims with the most bs'ing you can get --I havent heard of any with more than 3.5 bs'ing . If 4 in bs is the most you can get ,that would put a 10 in. rim about even with the fender lip . If not enogh you can get wheel spacers to set them out farther

eightyfive · 06-08-2010, 02:18 PM

Thanks slug. How much are those wheel spacers?

slugish · 06-08-2010, 09:37 PM

price is not that bad . Theres a fellow who makes them who was recommended by some other members here . Cant recall his website address .
Try googling wheel spacers .

slugish · 06-08-2010, 09:49 PM

try www.performancewheelspacers.com. My son has bought from them before with good results

westofb · 06-08-2010, 11:18 PM

Quote:

Originally Posted by slugish

try www.performancewheelspacers.com. My son has bought from them before with good results

Damn, they are proud of their spacers 2" spacers for $95 each!

eightyfive · 06-09-2010, 02:40 AM

Okay, i found the price, they just install between the hub and the rim? and could i see a picture of ur sons truck? Only if u have one handy tho, dont go through too much trouble :P

06-06-2010, 12:16 AM	#1
eightyfive Registered User Join Date: Apr 2010 Location: Swan River Manitoba Canada Posts: 233	Backspacing, Offsetting, Backsetting, Offspacing, Backoff, Spacing Setting Confused!? hey every one, i need some help getting this through my head. What is the difference bewteen backspacing and offsetting, what do they mean? Im gunna be gettin new wheels for my sierra classic and i want them to stick out as far as they can. (only on the back, the front can stay tucked in) Im gunna get 10" rims for the rear and 8" rims for the front. So wat backspacing or offsetting would i need to get my rear wheels to stick out of the fender? Sorry for the long story, but thanks for the help __________________ parts truck- 1982 suburban GMC Sierra Classic first project- 1985 GMC Sierra Classic first truck- 1988 GMC Sierra sle "New" Hot rod 1999 Chevy silverado 5.3L ^^^ Workin my way up the food chain

06-06-2010, 12:29 AM	#2
westofb I really hate wet sanding! Join Date: Dec 2008 Location: Brookfield, MO Posts: 601	Re: Backspacing, Offsetting, Backsetting, Offspacing, Backoff, Spacing Setting Confus Back spacing is the distance from the back bolt face of the wheel to the rear wheel lip. Offset is the amount the back bolt face of the wheel is offset from the center of the wheel. 8" ralleys have 4" back spacing and their offset would be zero. I can't remember which is which off top of my head but postive and negative offset has to do with how much the bolt face (the are of the wheel that sits on the hub) is offset from center. __________________ Jeff, 68 C-10 75 C-20, now a C-10! 10 F-150

06-06-2010, 12:38 AM	#3
ElGracho Gentleman Jim Driver Join Date: Nov 2002 Location: Poulsbo, WA Posts: 1,553	Re: Backspacing, Offsetting, Backsetting, Offspacing, Backoff, Spacing Setting Confus http://tinyurl.com/28p75mv __________________ Joe '75 GMC Gentleman Jim '84 Chev C10 Short Wide - Super duper plain (manual steering, manual brakes, no dome light, no cig lighter) '85 Chev C10 Short Wide - Super plain Vortec 4.8 4L60E trans also: '81 K30, '83 C30 Crew Dually, '84 M1028 CUCV, '85 M1009 CUCV, another '85 C10 SWB, '89 R3500 Flatbed Last edited by ElGracho; 06-06-2010 at 12:41 AM.

06-06-2010, 01:18 PM	#4
N2TRUX Happy to be here Join Date: Mar 2000 Location: Cypress, TX Posts: 39,021	Re: Backspacing, Offsetting, Backsetting, Offspacing, Backoff, Spacing Setting Confus And just so you know, the more the wheels stick out from under your truck, the more crap the tires will sling on your paint. Maybe it's a regional thing, but where I am from that look is considered a "Hillbilly Hauler". __________________ Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra"

06-06-2010, 03:44 PM	#5
eightyfive Registered User Join Date: Apr 2010 Location: Swan River Manitoba Canada Posts: 233	Re: Backspacing, Offsetting, Backsetting, Offspacing, Backoff, Spacing Setting Confus Thatss true about the hillbilly hauler thing, but i like that look haha. wat backspacing would i need to get them to stick out the side like that? __________________ parts truck- 1982 suburban GMC Sierra Classic first project- 1985 GMC Sierra Classic first truck- 1988 GMC Sierra sle "New" Hot rod 1999 Chevy silverado 5.3L ^^^ Workin my way up the food chain

06-06-2010, 11:09 PM	#6
slugish Slugish Join Date: Jan 2005 Location: Earlysville, Va. Posts: 1,024	Re: Backspacing, Offsetting, Backsetting, Offspacing, Backoff, Spacing Setting Confus 10 in rims with the most bs'ing you can get --I havent heard of any with more than 3.5 bs'ing . If 4 in bs is the most you can get ,that would put a 10 in. rim about even with the fender lip . If not enogh you can get wheel spacers to set them out farther

06-08-2010, 02:18 PM	#7
eightyfive Registered User Join Date: Apr 2010 Location: Swan River Manitoba Canada Posts: 233	Re: Backspacing, Offsetting, Backsetting, Offspacing, Backoff, Spacing Setting Confus Thanks slug. How much are those wheel spacers? __________________ parts truck- 1982 suburban GMC Sierra Classic first project- 1985 GMC Sierra Classic first truck- 1988 GMC Sierra sle "New" Hot rod 1999 Chevy silverado 5.3L ^^^ Workin my way up the food chain

06-08-2010, 09:37 PM	#8
slugish Slugish Join Date: Jan 2005 Location: Earlysville, Va. Posts: 1,024	Re: Backspacing, Offsetting, Backsetting, Offspacing, Backoff, Spacing Setting Confus price is not that bad . Theres a fellow who makes them who was recommended by some other members here . Cant recall his website address . Try googling wheel spacers .

06-08-2010, 09:49 PM	#9
slugish Slugish Join Date: Jan 2005 Location: Earlysville, Va. Posts: 1,024	Re: Backspacing, Offsetting, Backsetting, Offspacing, Backoff, Spacing Setting Confus try www.performancewheelspacers.com. My son has bought from them before with good results

06-09-2010, 02:40 AM	#11
eightyfive Registered User Join Date: Apr 2010 Location: Swan River Manitoba Canada Posts: 233	Re: Backspacing, Offsetting, Backsetting, Offspacing, Backoff, Spacing Setting Confus Okay, i found the price, they just install between the hub and the rim? and could i see a picture of ur sons truck? Only if u have one handy tho, dont go through too much trouble :P __________________ parts truck- 1982 suburban GMC Sierra Classic first project- 1985 GMC Sierra Classic first truck- 1988 GMC Sierra sle "New" Hot rod 1999 Chevy silverado 5.3L ^^^ Workin my way up the food chain



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