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03-02-2011, 08:54 AM
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#1 |
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Registered User
Join Date: May 2009
Location: romeoville,il
Posts: 509
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20x12 will they fit
Will a 20x12 mount up with no problems with a 7in drop or lower in the rear or will the tubs have to come out?
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Flowershop Hip Hop & Street Rods Dropmember 83 Custom Deluxe Almond on Almond 85 Silverado White on Red/Now Chevy LeMans Blue Rendering in Truckin magazine vol 36 no. 11,2010 |
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03-02-2011, 02:14 PM
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#2 |
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Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 22,071
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Re: 20x12 will they fit
12" wide wheels will require widening the tubs w/7" drop & allowable 'normal' clearance.
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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. Last edited by SCOTI; 03-02-2011 at 02:15 PM. |
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03-02-2011, 07:47 PM
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#3 |
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Join Date: Jul 2000
Location: East Bay,CA
Posts: 298
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Re: 20x12 will they fit
so what would "normal" clearances be?
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51 Chevy 3100 Deluxe Cab(SOLD)  65 **stang 6cyl 70 C10 Long Bed Fleetside(1st truck,thanks Dad![SOLD]) 72 C10 Short Bed Fleetside 73 Blazer 2WD Catalina Blue White Top(Needs Love) 73 Blazer 2WD Work in progress LT1/4L60E 83 Grand National (SOLD) 94 Blazer K1500 Silverado (SOLD) 96 Impala SS All original (NEXT IN LINE 2 B SOLD) 99 Tahoe 2DR, 2WD 
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03-02-2011, 08:56 PM
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#4 | |
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Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 22,071
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Re: 20x12 will they fit
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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03-03-2011, 11:06 PM
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#5 | |
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Registered User
Join Date: Jul 2000
Location: East Bay,CA
Posts: 298
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Re: 20x12 will they fit
Quote:
 SWEEEEEEEET Thanks scoti!The narrowest point in the rear wheel wells of my 73 K5 Blazer is 14.25, i guess that means that if my Arithmetic is correct, and i get a 12 inch wide wheel with the proper back spacing i will have 1.125 on either side for clearance. Now i don't mean to high jack the thread but what tire with run on a 12 in wide wheel?
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51 Chevy 3100 Deluxe Cab(SOLD) 65 **stang 6cyl 70 C10 Long Bed Fleetside(1st truck,thanks Dad![SOLD]) 72 C10 Short Bed Fleetside 73 Blazer 2WD Catalina Blue White Top(Needs Love) 73 Blazer 2WD Work in progress LT1/4L60E 83 Grand National (SOLD) 94 Blazer K1500 Silverado (SOLD) 96 Impala SS All original (NEXT IN LINE 2 B SOLD) 99 Tahoe 2DR, 2WD
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03-03-2011, 11:17 PM
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#6 | |
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Happy to be here
 
Join Date: Mar 2000
Location: Cypress, TX
Posts: 39,021
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Re: 20x12 will they fit
Quote:
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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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03-03-2011, 11:21 PM
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#7 | |
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*************
 
Join Date: Apr 2005
Location: Pensacola, FL
Posts: 17,858
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Re: 20x12 will they fit
Quote:
The tubs are narrowed to the frame and I have the narrow 67-70 rearend, 20x12's with 7" backspacing and a 31 x 16 tire but easily coud have run an 18" tire.
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Rob - https://www.instagram.com/hart_rod_c10 As Iron Sharpens Iron, So One Man Sharpens Another. Proverbs 27:17 FOR SALE: DBW pedal bracket - http://67-72chevytrucks.com/vboard/s...d.php?t=651123 FOR SALE: Hood Brackets http://67-72chevytrucks.com/vboard/s...d.php?t=679945 1987 Silverado SWB - 34.5K original miles http://67-72chevytrucks.com/vboard/s...d.php?t=801834 1969 SuperBurb - http://67-72chevytrucks.com/vboard/s...d.php?t=200387 1968 Farm truck - http://67-72chevytrucks.com/vboard/s...d.php?t=358692 1968 SWB - http://67-72chevytrucks.com/vboard/s...d.php?t=551258 1948 Chevy - http://67-72chevytrucks.com/vboard/s...=122164&page=3 Last edited by Hart_Rod; 03-03-2011 at 11:24 PM. |
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03-03-2011, 11:31 PM
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#8 |
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paper or plastic?
Join Date: Nov 2002
Location: SW Missouri
Posts: 671
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Re: 20x12 will they fit
20x12 315/35/20 6" backspacing on wheel and flip kit. Fit with trimming the fender lip 1/4"
They did rub a little on the inner fender wells when pulling in at an angle so I added a few inches to them.
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1967 Chevy SWB 250 http://67-72chevytrucks.com/vboard/s...d.php?t=442157 1977 Chevy SWB 454 No More 454 getting 5.3 http://67-72chevytrucks.com/vboard/s...d.php?t=310518 1977 Stepside Truck of the month winner http://67-72chevytrucks.com/vboard/s...d.php?t=135524 1965 Chevy C10 454 http://67-72chevytrucks.com/vboard/s...d.php?t=731372 1975 Dodge Power Wagon http://67-72chevytrucks.com/vboard/s...=1#post7871388 Last edited by Grande Rojo; 03-03-2011 at 11:33 PM. |
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03-26-2011, 02:41 PM
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#9 |
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Registered User
Join Date: Apr 2009
Location: Boston MA
Posts: 389
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Re: 20x12 will they fit
Woah grande rojo that looks sick. so you didnt need to narrow the rear or tubs or anything, just trim the fenderwell? and what do you mean added inches to them? id love to run that setup on my flipped '80! thanks!
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1979 c30 3+3 dually 1946 GMC |
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03-26-2011, 06:52 PM
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#10 | |
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Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 22,071
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Re: 20x12 will they fit
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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03-26-2011, 09:36 PM
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#11 | |
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Registered User
Join Date: Jun 2007
Location: DFW (Forney)
Posts: 1,529
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Re: 20x12 will they fit
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'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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03-27-2011, 02:00 AM
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#12 |
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Registered User
Join Date: Apr 2009
Location: swindon, england
Posts: 290
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Re: 20x12 will they fit
Interesting information scoti,
I allways presumed the measurement was to the outer edge of the rim !! |
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