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Discussion Starter #1
Hi,

I have a 68 coupe with front disc’s & currently have 195/65/15 tires on 15x6 wheels with 3.25” BS. Fit is very good, but was wondering if I’d be ok sizing up to 205/65/15? Also, if the 205’s could work up front on my existing rims up front, would it also work to get two matching rims in 15x7 with 4” BS & run 225/60/15 in the back?

Thoughts & experience greatly appreciated.
Mike
 

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Discussion Starter #3
Ya, 4.25 would be ideal but my existing wheels don’t come with that BS in a 15x7 and I can’t afford to buy a whole new set at this time.

thx
 

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Ya, 4.25 would be ideal but my existing wheels don’t come with that BS in a 15x7 and I can’t afford to buy a whole new set at this time.
In that case a 205/65 would fit okay, but I'd go 215/60 myself, very acceptable on your 6" wheel (while a 225/60 on a 6" 3.75" b.s. would be pushing it and not optimum like 2nd 66 intimated). Click on my pic below, that's the tire size I have on front there.
 

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Discussion Starter #5
Hmmm, so you’re thinking 215/60 would work ok on my 15x6 wheel with only 3.25” of backspace? I never considered that I could get away with that, as I was worried about bulging sidewall and or rubbing.
 

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Hmmm, so you’re thinking 215/60 would work ok on my 15x6 wheel with only 3.25” of backspace? I was worried about bulging sidewall and/or rubbing.
Yes. While your b.s. isn't optimum, it's also not heinously bad. A 215/60 tire will protrude outward about 5/16" more than a 225/60 on a 7" with 4.25" b.s. would, but because the new tire diameter is slightly less than a 225/60 would be you gain about 3/16" of wheel well clearance height room which nullifies nearly all of that protrusion. Unless your suspension is significantly lower than stock height a 215/60 should fit nicely.
 

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Discussion Starter #7
My front has been lowered but not heinously so, and looks similar to yours. The height of the 195/65's I am running are within 1/4" of 215/60's and my ride height is just under 12&3/4 in the front & 14&1/2" in the back with the tank 1/4 full, so I think I have the room. What ride height are you set up with?
 

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What ride height are you set up with?
I'm at 12 3/8" front so you're 3/8" taller. My camber is set at -1.0* which helps too. My rear tires are 245/60/15's which I'm pretty sure would rub on a road trip with a full tank (I have the bigger 22gal.), luggage, and Pammy Jo. I have another set of rear wheels with 235/60/15's for whenever that's gonna happen. I should mention my wheels are all 15x8 4.5" b.s. (zero offset), which could be considered as an optimum period correct size. Ya know what? Going back and looking at the pic in your other thread, the 25.5" diameter option you already mentioned (205/65/15) would fill out your wheel wells more than what you have now (not to mention a 205/60 too) and fit for sure. I'm starting to like that idea better, and you wouldn't need to sweat the fitment. I still believe 215/60's would work but it would be a near thing and possibly dependent on Camber. Those are nifty wheels, really nice, too bad about the damned back spacing.
 

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Discussion Starter #9
Thanks for your thoughts. I am now really leaning towards the 205/65's for those reasons, and I am intrigued by the idea of potentially getting two 15x7 rims for the rear, and running 225/60's in the back. These would fill out the rear wheel wells some & match up with the fronts height wise. My car was purchased new by my grandmother (still have the original bill of sale for $2,375), inherited by me in '82 when she passed, and then restored in '02. When I did my restoration my plan was to keep it true to it's roots, hence my approach wasn't overly aggressive. Had I not had the personal bond to it, I would have never invested the time & $$$ into a coupe, and would have pursued a fastback like yours or a convertible. I only wish I would have had the savvy to get wheels with a bit more backspace. Live & learn I guess. Thanks for your suggestions & input.

Mike
 

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205-65-15 is a great fit on the 15x6. the 225-60-15 should fit the rear with a 15x7 and 4" backspace.
 
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