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wheel backspacing on b-body #683873 04/29/10 08:51 PM 04/29/10 08:51 PM
Joined: Oct 2009 Posts: 217 Owosso, Michigan S stateroadhog OP enthusiast
stateroadhog OP enthusiast S Joined: Oct 2009 Posts: 217 Owosso, Michigan	I want to have my steel wheels widein to 8 inches on the rear of my 70 roadrunner with dana rear end. what should the back spacing be set at?

Re: wheel backspacing on b-body [Re: stateroadhog] #683874 04/29/10 09:00 PM 04/29/10 09:00 PM
Joined: Jul 2006 Posts: 4,319 Puyallup, WA S StealthWedge67 master
StealthWedge67 master S Joined: Jul 2006 Posts: 4,319 Puyallup, WA	Typically, for a 8" wheel, a squared up backspace would be about 4-3/4" (factory steel 7" wheels are @ 4-1/4") A 70 should have no problem fitting just about anything that will fit on a wheel in that neighborhood. LemonWedge - Street heavy / Strip ready - 11.07 @ 120

Re: wheel backspacing on b-body [Re: stateroadhog] #683875 04/30/10 02:01 AM 04/30/10 02:01 AM
Joined: Feb 2010 Posts: 18,493 Granite Bay CA Kern Dog Striving for excellence
Kern Dog Striving for excellence Joined: Feb 2010 Posts: 18,493 Granite Bay CA	Why not take the wheels out to 10 inch? I fit 18x10 rims in my 70 Charger without cutting anything. They have 4 3/4 inch backspacing.

Re: wheel backspacing on b-body [Re: Kern Dog] #683876 04/30/10 10:59 AM 04/30/10 10:59 AM
Joined: Nov 2004 Posts: 7,647 Houston Texas PAINT IT BLACK Got a CHIP on my shoulder
PAINT IT BLACK Got a CHIP on my shoulder Joined: Nov 2004 Posts: 7,647 Houston Texas	Quote: Why not take the wheels out to 10 inch? I fit 18x10 rims in my 70 Charger without cutting anything. They have 4 3/4 inch backspacing. Passenger tire size choices are lacking for a 15X10 wheel if you don't want drag radials. You are stuck with 295/50R15 tires and those are less than 27" tall. Btw, Don't square those 8" wheels in the wheel well. Put all the extra width on the front side of the wheel and fill in some of that gap.... will look much better. So 4.25 bs in that case. I had some 8.5" wheels on the back of my '70 Bee that had a 3.75" bs and they looked quite nice (going to 10" now though).

Re: wheel backspacing on b-body [Re: PAINT IT BLACK] #683877 04/30/10 11:12 AM 04/30/10 11:12 AM
Joined: Jan 2003 Posts: 8,016 Polson, MT DoctorDiff master
DoctorDiff master Joined: Jan 2003 Posts: 8,016 Polson, MT	Mickey Thompson makes Sportsman SR street radials in 28 x 12 x 15. Hoosier makes Pro Street radials in 29 x 12.50 x 15. Both tires fit 10" wheels nicely. Contact info

Re: wheel backspacing on b-body [Re: stateroadhog] #683878 04/30/10 11:40 AM 04/30/10 11:40 AM
Joined: Oct 2007 Posts: 735 New York R/T1968R/T super stock
R/T1968R/T super stock Joined: Oct 2007 Posts: 735 New York	Try this...its for a Charger but should help! http://vexer.com/68rt/old_outdated_badly_coded_old_old_old_wheelguide.html

Re: wheel backspacing on b-body [Re: stateroadhog] #683879 04/30/10 12:38 PM 04/30/10 12:38 PM
Joined: Dec 2007 Posts: 7,759 So Cal HealthServices Why would you even post that?
HealthServices Why would you even post that? Joined: Dec 2007 Posts: 7,759 So Cal	What size tire are you planing to use? Allen Here's a novel idea, let's not throw a bunch of parts at the car hoping it will fix the problem and instead spend a little time diagnosing it first. Life was a little easier when I was just a wrench.

Re: wheel backspacing on b-body [Re: stateroadhog] #683880 04/30/10 12:56 PM 04/30/10 12:56 PM
Joined: Jan 2003 Posts: 31,029 Oregon A AndyF I Win
AndyF I Win A Joined: Jan 2003 Posts: 31,029 Oregon	You might be able to find someone in the local area who has a tape measure who could help you measure the wheel wells. That is the best way to figure out how wide the wheels can be and where they should be centered.

Re: wheel backspacing on b-body [Re: AndyF] #683881 04/30/10 07:42 PM 04/30/10 07:42 PM
Joined: Feb 2003 Posts: 4,503 NJ 4 440challenger master
440challenger master 4 Joined: Feb 2003 Posts: 4,503 NJ	probably cheaper just to buy new 8inch wheel vintiques 4.5 inch bs

Re: wheel backspacing on b-body [Re: 440challenger] #683882 05/01/10 02:31 AM 05/01/10 02:31 AM
Joined: Dec 2007 Posts: 7,759 So Cal HealthServices Why would you even post that?
HealthServices Why would you even post that? Joined: Dec 2007 Posts: 7,759 So Cal	The only problem with wheel vintiques is, they are really heavy Allen Here's a novel idea, let's not throw a bunch of parts at the car hoping it will fix the problem and instead spend a little time diagnosing it first. Life was a little easier when I was just a wrench.

Re: wheel backspacing on b-body [Re: HealthServices] #683883 05/01/10 03:18 AM 05/01/10 03:18 AM
Joined: Feb 2010 Posts: 18,493 Granite Bay CA Kern Dog Striving for excellence
Kern Dog Striving for excellence Joined: Feb 2010 Posts: 18,493 Granite Bay CA	Heavy? So what? The mopar engines make plenty of torque anyway. The Heavier wheels wont make that much difference in acceleration, but they will allow a factory appearance and they are strong.

Re: wheel backspacing on b-body [Re: HealthServices] #683884 05/01/10 07:56 PM 05/01/10 07:56 PM
A Anonymous Unregistered
Anonymous Unregistered A	Quote: The only problem with wheel vintiques is, they are really heavy Wheel Vintiques 15X8'S = 27 lbs. apiece. 5958391-15x8.jpg (31 downloads)

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