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04-04-2013, 08:22 AM
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#1 |
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Frequent Flyer
Join Date: Aug 2009
Location: Tulsa, OK
Posts: 2,258
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Backspacing on 8" wheel?
Will a 17x8 with 4.5 backspacing work on a 5"-6" dropped square?
I havent had time to pull my current wheels of & measure the backspacing & it's been to long to remember so I thought I'd ask you guys until I get a chance to measure. I believe my current wheels are close to this backspacing. Thanks for any help. |
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04-04-2013, 09:50 AM
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#2 |
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I know the pieces fit
Join Date: Nov 2007
Location: MONTGOMERY, AL
Posts: 5,523
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Re: Backspacing on 8" wheel?
I'm pretty sure you have to grind some off the lip of the lca with 4.5" backspacing
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04-04-2013, 10:00 AM
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#3 |
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67-72 parts collector,…
 
Join Date: Nov 2002
Location: Mid-MO
Posts: 22,690
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Re: Backspacing on 8" wheel?
I had 17x8 wheels on my ol '82 2wd blazer with a 5" BS up front.
I would run a 17x9.5 on the rear. (I believe my 9.5's had a 4.5" BS)
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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04-04-2013, 10:08 AM
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#4 |
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Frequent Flyer
Join Date: Aug 2009
Location: Tulsa, OK
Posts: 2,258
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Re: Backspacing on 8" wheel?
My issue is pretty much all the 17x8's I've found are 4.5" backspacing.
(Coys, Ridlers, MB Old Schools, etc) |
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04-04-2013, 10:35 AM
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#5 |
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Registered User
Join Date: Jun 2011
Location: Baytown TX
Posts: 2,219
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Re: Backspacing on 8" wheel?
I think you will be ok with 4.5in bs as long as the tire isnt to large. Stock rallys 15x8 have 4.25in bs.
Posted via Mobile Device
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John 82 Chevy Silverado 350ci/TH350 
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04-04-2013, 11:45 AM
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#6 |
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67-72 parts collector,…
Join Date: Nov 2002
Location: Mid-MO
Posts: 22,690
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Re: Backspacing on 8" wheel?
I ran 255/50-17's and 275/50-17's.
Nitto 450 tires.
__________________
Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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04-04-2013, 11:49 AM
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#7 |
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Frequent Flyer
Join Date: Aug 2009
Location: Tulsa, OK
Posts: 2,258
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Re: Backspacing on 8" wheel?
That's exactly on what tires are on the truck now & it fills the fender wells great.
Just wasnt sure on the 4.5" backspacing. |
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04-04-2013, 12:16 PM
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#8 |
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Happy to be here
 
Join Date: Mar 2000
Location: Cypress, TX
Posts: 39,023
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Re: Backspacing on 8" wheel?
Glad to see your considering 17's rather than rallies. Now lets talk about setting this sweet b!itch on fire with some 20's....
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Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra" |
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04-04-2013, 12:45 PM
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#9 | |
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Frequent Flyer
Join Date: Aug 2009
Location: Tulsa, OK
Posts: 2,258
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Re: Backspacing on 8" wheel?
Quote:
20x8.5 with 5" backspacing & 20x9.5 with 5.25" backspacing... |
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04-04-2013, 12:47 PM
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#10 | |
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67-72 parts collector,…
Join Date: Nov 2002
Location: Mid-MO
Posts: 22,690
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Re: Backspacing on 8" wheel?
Quote:
__________________
Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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04-04-2013, 05:57 PM
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#12 |
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Frequent Flyer
Join Date: Aug 2009
Location: Tulsa, OK
Posts: 2,258
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Re: Backspacing on 8" wheel?
How bout 20x8.5 with 5.25bs & 20x10 with 5.5bs?
You guys are good at costing me money...  Posted via Mobile Device |
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04-04-2013, 05:58 PM
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#13 | |
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67-72 parts collector,…
Join Date: Nov 2002
Location: Mid-MO
Posts: 22,690
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Re: Backspacing on 8" wheel?
Quote:
Which wheels???
__________________
Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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04-04-2013, 05:59 PM
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#14 |
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Frequent Flyer
Join Date: Aug 2009
Location: Tulsa, OK
Posts: 2,258
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Re: Backspacing on 8" wheel?
That set up is the gray center boss wheels.
Posted via Mobile Device |
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04-04-2013, 06:08 PM
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#15 | |
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67-72 parts collector,…
Join Date: Nov 2002
Location: Mid-MO
Posts: 22,690
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Re: Backspacing on 8" wheel?
Quote:
__________________
Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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04-04-2013, 06:18 PM
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#16 |
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Frequent Flyer
Join Date: Aug 2009
Location: Tulsa, OK
Posts: 2,258
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Re: Backspacing on 8" wheel?
Ive heard some issues...Can they be ground to clear? Or did they ever have a solution?
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04-04-2013, 06:30 PM
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#17 |
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67-72 parts collector,…
Join Date: Nov 2002
Location: Mid-MO
Posts: 22,690
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Re: Backspacing on 8" wheel?
5 minutes with a flap disc per rotor.
Done.
__________________
Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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04-04-2013, 06:32 PM
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#18 |
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Frequent Flyer
Join Date: Aug 2009
Location: Tulsa, OK
Posts: 2,258
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Re: Backspacing on 8" wheel?
I'm good with that.
You are a huge help as always by the way. Posted via Mobile Device |
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04-04-2013, 08:59 PM
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#19 |
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67-72 parts collector,…
Join Date: Nov 2002
Location: Mid-MO
Posts: 22,690
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Re: Backspacing on 8" wheel?
Here's the minimal grinding that is required with 1-1/4" HD rotors.
81-87 Light Duty 1" rotors are a direct fit. From the Boss 338 mega-thread,... http://67-72chevytrucks.com/vboard/s...352320&page=48
__________________
Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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