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Discussion Starter · #1 ·
Hey Guys,

I'm working on the chassis on my 70 Mach. I'm tyring to find the best way to fit a 12" wheel for a 335/30 18 street tire and a 10.5W slick for the track. My question... Will a stock length rear housing/axles fit with a mini tub and appopriate backspacing or will I have to shorten the rear end in addition to a mini tub.


Thanks for any advice,

Jason
 

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It just depends on how deep you want the wheel to look. The best method is to cut the wheelwells out of the way, order your wheels and tires, set them in the car with the proper clearance between the quarter panels and framerails, and then measure between the wheel mounting surface. That measurement is the width of the assembled rear end that you will need in the car. Anything can be made to work with custom backspacing, but the final look might be compromised with wheels with alot of backspacing.
 

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Discussion Starter · #3 ·
On 2006-02-21 14:01, F15Falcon wrote:
Anything can be made to work with custom backspacing, but the final look might be compromised with wheels with alot of backspacing.
Great information!!That's my problem... I don't know how to order the wheels when I'm not sure which backspacing will work best and look good.
 

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On my 69 I have 15"X10"- 5"offset with 295/50 and they stick outside about 3/8" and I have 1" of clearence inside
 

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Think fitting a 12" wheel might be tough. Mine is a 68 so you may have a little more room. I cut out the inner wheel wells and cut off the flange on the frame in the area and brought my wheel wells flush to the frame. I'm using a 5.5 inch B.S. wheel and have only 1/2-3/4" clearance to the leaf spring using a 28X10.5 inch slick. I think the spring is where you will encounter probelms. the tire tucks completely under the outer wheel well (doesn't stick out)If you move the spring to under or inside the frame rails, you should be able to do it. As this will gain significant clearance at the front of the wheel well area. F15 Falcon recently advised us that using a Mopar leaf spring locator kit works. They do, however, make 2 different versions of that kit. He may know more.

Bill
 
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