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04-13-2009, 07:19 PM
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#1 |
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Registered User
Join Date: Apr 2007
Location: OR
Posts: 198
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Anybody running 20x12 rear wheels on 67-72?
Just curious if anybody is running 20x12 rear wheels? Pics of these would be great. How much back spacing was allowed? Did you have to narrow rearend and install mini tub?
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04-13-2009, 08:18 PM
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#2 | |
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Senior Member
Join Date: Nov 2005
Location: AL
Posts: 2,519
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Re: Anybody running 20x12 rear wheels on 67-72?
Quote:
A 295/40/20 is about as big as you want to go with stock tubs in my opinion.  
Last edited by jkade; 04-13-2009 at 08:19 PM. |
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04-13-2009, 08:44 PM
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#3 |
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Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,963
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Re: Anybody running 20x12 rear wheels on 67-72?
The deeper the 'dish' you want, the less back-spacing you need. The less back-spacing you need, the more the rear-end needs to be shortened.
A stock width 67-69 12-bolt truck housing will work w/a 12" wheel w/about 7" of back-spacing. That's roughly a little more dish (or lip) than a stock 15x8" GM truck ralley. I plan to run 20x12's w/6" back-spacing so I'll be swapping in a housing that's 2" shorter than a 67-69 housing. As Jkade mentioned, mini-tubs are mandatory if your truck is low (tucking the wheels/tires).
__________________
67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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04-13-2009, 09:11 PM
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#4 |
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Senior Member
 
Join Date: Jun 2002
Location: Cecilia, Louisiana
Posts: 1,638
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Re: Anybody running 20x12 rear wheels on 67-72?
I'm running 20x12's w/ 4" backspacing in the rear. Total width, outside to outside of disc, is 55 inches. Sorry i'm unable to get pics as my rearend just came back from the powdercoater.
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Chrisclick here to see my buildpage http://67-72chevytrucks.com/vboard/s...d.php?t=394656 ---------------------------------- 1979 C10 Silverado Big10 SWB Factory 454/400 Cardinal Red/Santa Fe Tan (original paint) 1969 Camaro X44 LS swap 1968 C10 SWB Fleetside (SOLD) 468BBC MultiPort TPI / Dynamic EFI P4 Black/Black 1963 Nova SS convertible (SOLD) 194 I6/ PowerGlide |
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04-13-2009, 09:11 PM
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#5 |
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Registered User
Join Date: Jun 2007
Location: DFW (Forney)
Posts: 1,529
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Re: Anybody running 20x12 rear wheels on 67-72?
What SCOTI said.
One day I'm going to get my 20x12's. 
__________________
'58 SWB Fleetside...Front & Rear Porterbuilt Dropmember, 6.0 LS /4L60E. Accuair E-level, 20 Billet Specialties (Vintecs) '63 Buick Riviera ... AccuAir E-level, 20" Billet Specialties (Vintecs) http://67-72chevytrucks.com/vboard/s...=528853&page=5 |
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04-13-2009, 09:43 PM
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#6 |
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Registered User
Join Date: Apr 2007
Location: OR
Posts: 198
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Re: Anybody running 20x12 rear wheels on 67-72?
Thanks so much!
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04-13-2009, 11:18 PM
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#7 | |
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Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,963
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Re: Anybody running 20x12 rear wheels on 67-72?
Quote:
__________________
67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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