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

tmade · 09-18-2012, 06:34 PM

Please help. With a wheel 22x10 in the front and 22x12 rear with backspacing 4.5 how much modifications are needed to "tuck" the wheels with airbags? Just need to know how much I'm gonna have to modify. *Pics of wheels below*

tmade · 09-18-2012, 10:37 PM

Anyone????

tmade · 09-18-2012, 11:25 PM

I know thread is worthless without pics!!! These are the wheels that are going on the truck. Can someone please help me out.

**70cst** · 09-19-2012, 12:16 AM

Maybe this will help...

http://67-72chevytrucks.com/vboard/s...d.php?t=463017

http://http://67-72chevytrucks.com/v...52#post5451652

http://67-72chevytrucks.com/vboard/s...d.php?t=521031

http://67-72chevytrucks.com/vboard/s...d.php?t=460580

**CC69Rat** · 09-19-2012, 09:29 AM

What year is your truck? 69? The reason I'm asking is the rear end housing in the 67, 68 and some early 69 trucks was slightly more narrow than the later 69+ trucks.

With a 22x12 and 4.5" backspacing that puts around 7.5 (or more) to the outside of the wheel.

Usually people will run 20x10 (or 22, whatever ..) with 5"BS on an early housing. This will change to 5.5" BS on a late housing. (69 model year forward)

In short, what I'm saying is I don't think your wheels will work without narrowing the rear end, sectioning / widening the rear wheel tubs and adjustments to the bed floor to accomodate. If you're bagging it / lifting the bed floor this may not be a problem but I'm thinking on a factory length rear end your wheels are too wide.

Just my .02

Pro Performance · 09-19-2012, 02:20 PM

I think you will have to do A LOT of modifying to get the 10's w/ 4.5" backspace to work on the front. That will will stick way out, and would probably have to go with narrowed arms and a dropmember which will narrow the track width as well.

**CC69Rat** · 09-19-2012, 03:13 PM

Would be killer if / when you get it to work though!

Tinkermc · 09-19-2012, 04:02 PM

waiting 2 see how you do it wheels look great, looking at the number of post welcome to the forum

*Fitz* · 09-19-2012, 04:24 PM

Quote:

Originally Posted by tmade

Please help. With a wheel 22x10 in the front and 22x12 rear with backspacing 4.5 how much modifications are needed to "tuck" the wheels with airbags? Just need to know how much I'm gonna have to modify. *Pics of wheels below*

Can't say about the fronts but this will help with the rears. I looked at keeping the stock axle or narrowing the axle by 3 inches a side. Eventually kept the stock axle and installed narrowed fleetside finner fenders in the bed of my 67 stepside. The photo's are from a 67 (not mine) that was featured here several years ago called "The Silver Bullet" which I copied when it was time to do the rears on mine. You will have to remove the bumpstops for the rear axle to do this.

tmade · 09-19-2012, 06:04 PM

My truck is a 72 I guess when I bring the wheels to the body shop we'll see what we have to do to get these to work

Pro Performance · 09-19-2012, 06:06 PM

Make sure to post up pictures.... anything is possible! They will look aggressive on there.

Theboatandcarman · 07-12-2017, 09:58 PM

Any good photos of the 12" wides on back? Most I find for 8 lugs are no more than 5" backspacing unfortunately.....

09-18-2012, 06:34 PM	#1
tmade Registered User Join Date: Mar 2011 Location: Beaumont Texas Posts: 45	Backspacing question Please help. With a wheel 22x10 in the front and 22x12 rear with backspacing 4.5 how much modifications are needed to "tuck" the wheels with airbags? Just need to know how much I'm gonna have to modify. Pics of wheels below Last edited by tmade; 09-18-2012 at 11:26 PM.

09-18-2012, 10:37 PM	#2
tmade Registered User Join Date: Mar 2011 Location: Beaumont Texas Posts: 45	Re: Backspacing question Anyone????

09-18-2012, 11:25 PM	#3
tmade Registered User Join Date: Mar 2011 Location: Beaumont Texas Posts: 45	Re: Backspacing question I know thread is worthless without pics!!! These are the wheels that are going on the truck. Can someone please help me out. Attached Images

09-19-2012, 12:16 AM	#4
70cst Senior Member Join Date: Feb 2001 Location: New Madison, Ohio Posts: 21,365	Re: Backspacing question Maybe this will help... http://67-72chevytrucks.com/vboard/s...d.php?t=463017 http://http://67-72chevytrucks.com/v...52#post5451652 http://67-72chevytrucks.com/vboard/s...d.php?t=521031 http://67-72chevytrucks.com/vboard/s...d.php?t=460580 __________________ A husband can be right...or...A husband can be happy. 67-72 Chevy and GMC Trucks...The Classic Truck for the Classic Folk. 1970 CST Two tone green, 402BB, 400 Automatic, Tach, Buckets, AC, AM-FM, Tilt, GM CB, GM 8 Tract, LWB, etc JOHN 17:3...The better side of "LIFE" Remember: Everyday is a good day...Some are just gooder!

09-19-2012, 09:29 AM	#5
CC69Rat Senior Member Join Date: Jan 2011 Location: Chattanooga TN Posts: 6,206	Re: Backspacing question What year is your truck? 69? The reason I'm asking is the rear end housing in the 67, 68 and some early 69 trucks was slightly more narrow than the later 69+ trucks. With a 22x12 and 4.5" backspacing that puts around 7.5 (or more) to the outside of the wheel. Usually people will run 20x10 (or 22, whatever ..) with 5"BS on an early housing. This will change to 5.5" BS on a late housing. (69 model year forward) In short, what I'm saying is I don't think your wheels will work without narrowing the rear end, sectioning / widening the rear wheel tubs and adjustments to the bed floor to accomodate. If you're bagging it / lifting the bed floor this may not be a problem but I'm thinking on a factory length rear end your wheels are too wide. Just my .02 __________________ Chad 1967 C10 SWB - Project Savannah - 6.0/4L80 Currently underway 1968 C10 SWB - TOTY 2018, 50th Anniversary Tribute Project * Sold * Pride and Joy 1986 Silverado Short Fleet - Scarlet Sold 1985 Silverado Short Fleet Sold 2022 Jeep Gladiator Mojave 2001 Jeep Cherokee XJ 4x4 - Lifted, Built 1992 Jeep Cherokee XJ 4x4 - Lifted 2013 Honda Accord EX-L v6 Coupe 6spd (wife's ride)

09-19-2012, 02:20 PM	#6
Pro Performance Registered User Join Date: Aug 2010 Location: AZ Posts: 3,069	Re: Backspacing question I think you will have to do A LOT of modifying to get the 10's w/ 4.5" backspace to work on the front. That will will stick way out, and would probably have to go with narrowed arms and a dropmember which will narrow the track width as well.

09-19-2012, 03:13 PM	#7
CC69Rat Senior Member Join Date: Jan 2011 Location: Chattanooga TN Posts: 6,206	Re: Backspacing question Would be killer if / when you get it to work though! __________________ Chad 1967 C10 SWB - Project Savannah - 6.0/4L80 Currently underway 1968 C10 SWB - TOTY 2018, 50th Anniversary Tribute Project * Sold * Pride and Joy 1986 Silverado Short Fleet - Scarlet Sold 1985 Silverado Short Fleet Sold 2022 Jeep Gladiator Mojave 2001 Jeep Cherokee XJ 4x4 - Lifted, Built 1992 Jeep Cherokee XJ 4x4 - Lifted 2013 Honda Accord EX-L v6 Coupe 6spd (wife's ride)

09-19-2012, 04:02 PM	#8
Tinkermc Registered User Join Date: Jul 2011 Location: Farmville, Va Posts: 3,026	Re: Backspacing question waiting 2 see how you do it wheels look great, looking at the number of post welcome to the forum

09-19-2012, 06:04 PM	#10
tmade Registered User Join Date: Mar 2011 Location: Beaumont Texas Posts: 45	Re: Backspacing question My truck is a 72 I guess when I bring the wheels to the body shop we'll see what we have to do to get these to work

09-19-2012, 06:06 PM	#11
Pro Performance Registered User Join Date: Aug 2010 Location: AZ Posts: 3,069	Re: Backspacing question Make sure to post up pictures.... anything is possible! They will look aggressive on there.

07-12-2017, 09:58 PM	#12
Theboatandcarman Registered User Join Date: Aug 2015 Location: Harleysville, PA Posts: 398	Re: Backspacing question Any good photos of the 12" wides on back? Most I find for 8 lugs are no more than 5" backspacing unfortunately..... __________________ keep on building. http://67-72chevytrucks.com/vboard/s...d.php?t=680094 2017 GMC Canyon diesel 1968 Chevrolet C20 1970 Mercedes 280S (WTB 1968 4wd barn door suburban)



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