Tire/wheel sizes for 68 dart.
- Thread starter R68DartGT
- Start date
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Map63Vette
Well-Known Member
You might include which axle you are running as that will affect what backspacing you would need. I have a B body axle in my 67 with the offset shackles and about the largest tire I'm comfortable running is a 255 section width. I did have to trim/roll the fender lips on the inside of the wheel opening though. I run some moderately large offset wheels to make it work (they are meant for a front wheel drive car), but they keep the tire pretty well centered in the opening with the axle I have. With a stock axle I imagine you'd be closer to neutral backspacing, but I don't know the numbers off the top of my head.
Any Pics? Any trimming or lip rolling? Offset springs or shackles?
67-9 cars must have more room. My 70 has 15x7's with 4.25 backspace and 255/60's. I can't slide my fingers between the springs and the sidewall and the fender lip is even tighter.
Thanks for the info.
This is good information.
Mine is a 73 model Swinger .
I’m planning on a 8 3/4 that is slightly narrow , about an inch shorter than stock .
And I’m moving the spring pads in a half on each side .
It should turn out okay .
I’ll be sure to post information when I get done for any future reference .
Tommy
Mine is a 73 model Swinger .
I’m planning on a 8 3/4 that is slightly narrow , about an inch shorter than stock .
And I’m moving the spring pads in a half on each side .
It should turn out okay .
I’ll be sure to post information when I get done for any future reference .
Tommy
They typically have less, the '70+ cars on average have a bit more room. But realistically they're all very similar, I would say that if you looked at an average of the dimensions on all the 67-76 Darts you'd probably just find that the 67-69 cars are on average at the smaller end of the overall tolerance, while the 70+ cars trend to the larger end of the tolerance, with outliers in both year ranges crossing over.
On a Dart, you can fit a 255 into the wheel well without 1/2" offset shackles. I would not bet on this, as it's very tight and will depend on your car's body tolerances, ride height, spring rate, and even how you drive the car. People here on this board have definitely done it though.
With offset shackles, a 255 is absolutely possible without cutting anything if you have the backspace right. Even 275's are possible with the offset shackle, but again, I wouldn't do that unless I was prepared to roll the quarter lip. Can it be done without rolling? Probably on some cars. But I wouldn't bet on an individual car I haven't measured being able to do it.
Yep. Quite a difference between your 225's and my 255's. I need to shoot some good photos like you did.
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