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Just put on 18x8 4.5 BS Foose Legend 104s, 225/45 Front 245/45 rear. No Rubs, it is very close though. I am going to roll the arches to gain a little more insurance.

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How much space is between the leafs and the inside of the tire? Could you have run a deeper backspaced wheel, and therefor a larger tire?
 

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Here's the pics of the 295/50 R15 in the rear that BlackHueys posted (on page 4, post #50). I purchased the car from him in 2008. He ended up having to use air shocks to make sure they didn't rub. The only time I felt/heard them rubbing was when I took a sharp turn that was slightly uphill into Arbys. But there was some rubbing marks up against the inside of the wheel well from when he drove it, although he had told me one of the air lines to one of the rear shocks let go once and that may have caused it. I think 295's are pushing it to close when it's not tubbed. The air shocks and wheels are being replaced within a few months... maybe with 275's if they'll fit after the measurements are made. I'll post photo's and info on the new wheels when I do.
 

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@Richness, there is about 1.5" to the leafs. Hindsight, I would have run 4.75-5 backspace and the same tire to have lots of clearance. You could have the car ride a little higher and stuff a bigger tire in there, 265?
 

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i have a set of late model Mustang 17 x 8 rim (looks like torque thrust,,kind of). The tires/rims fit great on the back of my 68 XR7, however no go on the front, the wheel is hitting my upper control arm. I see people discussing spacers 4.75. So my questions are this if I get the 4.75 spacer...

1. Will the tire then rub the fornt fender lip?
2. Will the wheel hit in the rear if a spacer is added?
3. Will I need spacers for the front and back (I'm sure this is a really dumb question)?
4. Where would I locate spacers?

I appreciate the help....really new at this. I never encounterd wheels that did not fit........it's a whole new world out here LOL!!
 

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TrickCat. I'm trying to intall the same rims and tires on my 68. My fronts are rubbing the control arms. The backs fit great. My 68 is stock heigth. Where did you get the spacers...really looks good on your, and you made it work!! Once you lowered it were there any issues? Man you are giving me hope, want mine to look that good! Thanks.
 

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TrickCat. I'm trying to intall the same rims and tires on my 68. My fronts are rubbing the control arms. The backs fit great. My 68 is stock heigth. Where did you get the spacers...really looks good on your, and you made it work!! Once you lowered it were there any issues? Man you are giving me hope, want mine to look that good! Thanks.
There are threads about using the spacers for fitting the late model to the Cougars and early mustangs. Give er a google or even search the term spacer here.
 

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letsroll. thank you for the help. Most spacers I found require a hub size. I'm going to mic mine tonight. and see which size I need.
I'm installing a 1.25 spacer at all four corners.
 

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^^^Danimal what did you find out with hub size? and have you moved forward. I'm interested in the rims you have as well for my 68. Unfortunately where the car is now, I cant get the wheels off too easily to measure anything...pics too when you get them going please
 

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Fronts are 225 45 18 rear 255 45 18 Nitto 555 70 Cougar Restomod 024.jpg lowered 2" front and rear but now have air adjustable in rear for loads...front is coilovers that I can adjust ride height manualy
 

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Sorry didn't see this until now!! I installed 17x8 front wheels (4.5 BS) with 235/45R17 tires, I also installed 17x9 wheels (4.5BS)with 245/50R17 tires. I didn't use any spacers... but you do need to have 4.5 inches of backspacing on the wheel.
 

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It would be nice to know more than just what the wheels and tires are and the year. If we knew what suspension was under these cars it would help also. Another crucial measurement in my determination of what I can fit is clearance to body and frame. After reading this thread multiple times and looking through a bunch of threads I still have no real determination on what wheel width and backspace can work. All 1967 cars for example should be able to have a statement like, "1967 Front, stock suspension - 15x7 4" BS front clears with 195/60 to 225/60 tires". If we had a spreadsheet like that we would all be able to answer our own questions. If someone had access to one of those wheel offset tools they could mount a tire to it and be able to give people a pretty definitive answer to what tire works on what wheel and BS. This would work best for a retired person who just has a kind heart and wanted to help the community. Makes me wish I was retired...oh well...cars won't even be cars when I retire...

Guess I will just buy some wheels and take a gamble.
 

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I don't know if this will benefit anyone but anyway. While I am waiting for wheels to come in I threw on some rollers.

Incase anyone was wondering...a stock jeep cherokee wheel and tire (225/75/15) tire does fit with a 3" lower suspension. I jounced the suspension as much as possible and did not feel any inner quarter rubbing.

This is a 28.25" tall tire which is obviously taller than most people will ever put on a street car.




Here is the inside clearance. As far as I can tell from measuring and internet searching the stock wheel is 15x7 with a 5.25" to 5.5" BS. There is quite a bit of sidewall bulge with these tires so I see no issue with running a 6" BS wheel especially if you have a tire that fits the wheel better.




Here is the clearance to the lip of a factory rear quarter.
 

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I know this thread is several (8) years old, but is there an updated list of all of the different wheel sizes used? I am going to attempt 18' on my '67 this weekend and will post info on my results. Thanks.
 

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I know this thread is several (8) years old, but is there an updated list of all of the different wheel sizes used? I am going to attempt 18' on my '67 this weekend and will post info on my results. Thanks.
You might notice that this thread is constantly updated regardless of how old it is. So it's current.
 

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I successfully installed 1-1/2" spacers and 18x9 Bullitt wheels all the way around on my 67. They have Nexen N3000 245/40's on the front and 275/35's on the rear. I have not done anything with the suspension or driven the car with this set up on it yet. I have clearance from lock to lock and they do not look like they will cause any issues when turning.
 

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Does anyone know if a 225/60/14 will fit both the front and the rear of a 68 without issues? If I buy the tires I wouldn't be able to return them. I believe the magnum 500's have a 4" backspace, maybe a 4.5". It has been a long time since I looked at them.
Paul
 

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FYI 69 cougar lowered 1.5 inches 17X8 0 offset 245-40-17 Nice fit for front lots of room rear.

R 004.jpg
 

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Anyone using 315, or 335 on 18" at the rear?
 

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Bumping this up!


I'm looking to fit a 15x10" wheel, with a 275/50/15 drag radial, and/or a 295/50/15 street radial. On my last 67 Mustang, 15x10 with 5.5" backspacing seemed to fit well. I know the frame/springs are the same...but how much different is the distance to the wheel lip? Will a 15x10 work with that kind of tire? If not with 5.5"...what backspacing would you suggest?

Thanks in advance!

Cris
 
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