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How fat of a tire will fit

Cratos

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got the A body rear in, with doc diff 1 inch offset hangers & super stock springs spring 15 x 10 keystone klassics with 295-55-15s
 

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ProSport

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Its all about offsets not rim width. Old thread, should know by now.

Moparleo, who asked you??

I haven't been on this forum in a LONG time, I get on here today and this thread was on the very first page of a very slow moving forum 'Tires and rims' so who cares if it's old.

Please elaborate on how it's "All about offsets not rim width". So what you're saying is that as long as the offset is right I should be able to put a 15" wide rim on my Challenger, right? Lmao.
 

Cojohnso

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32x15 on 15" Centerline rim.

I suppose you want it all nice and tucked in to stock wheelwells? Well la de da! Lol.
 

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moparleo

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Calm down youngster. If you look at an offset chart you will see that once you know the distance for the inner fender lip to the outer edge of the leaf spring, it is just a matter of the correct "offset" " back space" to locate the rims center. If you had 15" of space, yes you could mount that rim width assuming you have the correct "offset" rim. Not complicated. On an E-body it can be done by relocating the front spring mount to the "frame rail" and offset rear shackles.
That is how it was done back in the seventies on early "Pro-Stock" cars. Look up an E-body spring relocation kit. They have been selling them for 50 years.
 

ProSport

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Moparleo, I'm 48, have stacks of 9 second time slips with street cars, and I've fit more wheels and tires than you can imagine. You might be able to BS some other guys but not me, and no you can't put a 15" wide wheel into a 15" space lol.
Anyways carry on, no need to hijack a thread just to argue, just seemed like you made a strange comment to me when I simply asked someone what size rim they went with, you may have not even been talking to me. Have a good day. 😎
 

Hemi2c

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Hi Guy's,
Anyone tried 15x7" rims with 3.5" back space for the fronts on a Cuda? What tyre size? I would like it to fill out the wheel opening and also going to fit 2" lowering spindles.
Thanks
Al
 

gzig5

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Hi Guy's,
Anyone tried 15x7" rims with 3.5" back space for the fronts on a Cuda? What tyre size? I would like it to fill out the wheel opening and also going to fit 2" lowering spindles.
Thanks
Al
I've got 15x7 on the front. I think they are 3.5" backspace but not positive. I have 255/60-15 on the front and they fit fine. I have the front down a bit but not dragging.
 

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Rapid Transit

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I'm restoring a 1972 Plymouth Cuda and I'm just wondering how fat of a tire will fit in the stock rear wheelwells?
I have a 73 Cuda. I have 7" wheels on the front with 245/60-15 tires. I do not recall the backspace on the 7" wheels. The back wheels are 8" with 4.5" of backspace & 275/60-15 tires. I do not have any clearance issues at all. The rear springs are in the stock location. The springs are Mopar XHD.
 

DustyDave

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295-50-15s
I am going to put an A body rear in ( gain 2 inches on each side ) once I get it back from powder coating this should put the tires where I want them, using doctor did spring relocation kit.
right now the tires rub a bit on the outer fender lip.in less I jack up the air in the shocks ( cant weight to get the airs off it!)

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What are the widths on the keystones?
 

sublimemike

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This post here has been so helpful in answering my questions . I did believe challengers had slightly bigger wheel wells. Now I know I can get my 325's on a 10inch rim and as they sit with 10.5 inch of road contact I should be ok with a 10.5 in slick with 10" of contact. Our Nostalgia Superstock class rules are max 10" of rubber
 

Tig

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Rules for UK NSS are "sidewall designated 10.5 inch, maximum width". There are a couple of cars in the class I can think of, running the 10.5 W's which in reality are over 11 inches wide.
 
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