67-69 Dart front wheel backspace question?

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dusterdoug

dusterdoug

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Anyone run a 15 x 7 wheel up front with a 4” back space. I’m considering such a wheel with a 205/65/15 and was wondering if that backspace isn’t enough.

Any pics??

Thank you in advance!
 
BBP or SBP?

Even with BBP brakes a 15x7 with a 4” backspace will work with a 205/65/15. That’s about the max though, you wouldn’t be able to run a 225/60/15 with BBP brakes without a 4.25” backspace.
 
dano said:
Have you converted to BBP or done any rear swap?
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Yea, left out that detail. Car is all BBP on all 4 corners; rear combination has been decided. The issue is that the options for the wheels I like are only 4” or 7” wide for the front.
 
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I run 17x7 fronts with a 4.75" back spacing. I had the big Mopar set up front but switch to Dr Diff 13". They fit just fine with both. Like 72' said 4.25 to 4.5 would be fine, but, good luck finding that back space off the shelf, its limited. I had to go custom.

205 is too narrow for a 7" wide rim. 215 Minimum, 225 is ideal.
 
The 205/65/15’s should fit. But not really anything wider with that backspace. 215’s would be marginal and 225’s I would say won’t fit most cars with that set up and backspace.
 
dano said:
...205 is too narrow for a 7" wide rim. 215 Minimum, 225 is ideal.
Click to expand...

205 is not too narrow for a 7" rim...they'll seat with no issues, and they'll ride handle and wear normally unless over/underinflated. I ran 205/65/15s on my Mustang with 15x7 turbine style wheels years ago because they were free and I was a poor teenager-absolutely no issues. What can get you is the aspect ratio...with a 205 cross section tire, anything less than 55 probably wouldn't seat very well.
 
txstang84 said:
205 is not too narrow for a 7" rim...they'll seat with no issues, and they'll ride handle and wear normally unless over/underinflated. I ran 205/65/15s on my Mustang with 15x7 turbine style wheels years ago because they were free and I was a poor teenager-absolutely no issues. What can get you is the aspect ratio...with a 205 cross section tire, anything less than 55 probably wouldn't seat very well.
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Sure with a tall wall a narrower tire would fit too and I've seen people fit all kinds of stupid size on the wrong width (I'm talking about the negative camber, stretched and pulled "look at my bead" crowd). I guess my point was if you're buying tires get the correct size for the rim. If it we're me I'd either get a 6"-6.5" wide rim for the 205 or buy a wider tire for the 7" ignoring ones financial position at the time. My 92 GT Pony rims used 225/55/16 at 7" wide.
 
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