295/55/15s
An L60 14 had a section width just over 11" wide and was about 27" tall (not that short!). Basically a 275/60/14. It would have been a bit narrow for a 10" wide rim, and with "hardly any" backspacing it was probably even with or stuck out past the quarter. But that's not an issue with air shocks, since there would have been very little suspension travel and the car probably sat pretty high in the back.
You can fit a 275 on a Duster/Dart Sport/Demon without any modifications at all even on a lowered car. Springs in the stock location, no trimming on the quarter lip (unless the axle isn't centered well). Just have to get the backspacing right, and that depends on what axle you've got. SBP A body 8 3/4's are wider than BBP 7.25's and 8.25's, and of course an A-body 8 3/4 with BBP axles is wider still. A 275 is the widest tire you can run without modifications IMHO, it's the largest tire that fits with stock equipment and without trimming. If you want to go as wide as possible with the stock wheel tubs, you can run 295's, but that requires a 1/2" spring offset and trimming back or rolling the quarter lip. Do that and a 295 is pretty much the widest tire that will fit and you have to get your backspacing just about perfect to do it if you're lowered any.
I'll get on my soapbox for a second :soapbox: about what people say "fits" as far as tires go, sorry in advance. If the ride height is jacked up and/or air shocks are used, what "fits" doesn't really matter anymore. The tires can hang out past the quarters and you still won't get any rubbing, because there isn't enough suspension travel for the tires to hit the quarters. That doesn't mean the tires fit. They don't. You can't run the car at stock ride height (or lower) and have functional rear suspension and still run those tires. But they don't rub, so people will say they fit.
Like these, pictures by diymirage. N50's. To be clear I'm not picking on him, this just illustrates perfectly what I'm talking about. It's his car and if he likes it that's all that matters, different strokes for different folks, his car and my car are for totally different applications and that's ok. :thumbsup:
These tires don't rub, but they sure as heck don't fit. Maybe it's just my definition, but if a tire "fits" it actually has to fit inside the wheel well and the quarters. You could put any width tire you want on the car above, it wouldn't matter, it'll never rub. The ride height puts the quarter further above the tire than the suspension will move. But not rubbing and actually fitting are two different things. If you don't run your suspension exactly like that car, those tires will rub, because they don't fit. I don't care if that's the way you want to run your car, that's awesome, it's your car, and the 70's drag car nostalgia thing is great if that's what you want to do. But if you want those tires to actually fit you'd need a 3" spring relocation and a mini-tub.
So my point is that you have to be careful about what people say they fit on their car, because there's more than one interpretation of what fits. Sorry, rant over. :rolleyes:
An L60 14 had a section width just over 11" wide and was about 27" tall (not that short!). Basically a 275/60/14. It would have been a bit narrow for a 10" wide rim, and with "hardly any" backspacing it was probably even with or stuck out past the quarter. But that's not an issue with air shocks, since there would have been very little suspension travel and the car probably sat pretty high in the back.
You can fit a 275 on a Duster/Dart Sport/Demon without any modifications at all even on a lowered car. Springs in the stock location, no trimming on the quarter lip (unless the axle isn't centered well). Just have to get the backspacing right, and that depends on what axle you've got. SBP A body 8 3/4's are wider than BBP 7.25's and 8.25's, and of course an A-body 8 3/4 with BBP axles is wider still. A 275 is the widest tire you can run without modifications IMHO, it's the largest tire that fits with stock equipment and without trimming. If you want to go as wide as possible with the stock wheel tubs, you can run 295's, but that requires a 1/2" spring offset and trimming back or rolling the quarter lip. Do that and a 295 is pretty much the widest tire that will fit and you have to get your backspacing just about perfect to do it if you're lowered any.
I'll get on my soapbox for a second :soapbox: about what people say "fits" as far as tires go, sorry in advance. If the ride height is jacked up and/or air shocks are used, what "fits" doesn't really matter anymore. The tires can hang out past the quarters and you still won't get any rubbing, because there isn't enough suspension travel for the tires to hit the quarters. That doesn't mean the tires fit. They don't. You can't run the car at stock ride height (or lower) and have functional rear suspension and still run those tires. But they don't rub, so people will say they fit.
Like these, pictures by diymirage. N50's. To be clear I'm not picking on him, this just illustrates perfectly what I'm talking about. It's his car and if he likes it that's all that matters, different strokes for different folks, his car and my car are for totally different applications and that's ok. :thumbsup:
These tires don't rub, but they sure as heck don't fit. Maybe it's just my definition, but if a tire "fits" it actually has to fit inside the wheel well and the quarters. You could put any width tire you want on the car above, it wouldn't matter, it'll never rub. The ride height puts the quarter further above the tire than the suspension will move. But not rubbing and actually fitting are two different things. If you don't run your suspension exactly like that car, those tires will rub, because they don't fit. I don't care if that's the way you want to run your car, that's awesome, it's your car, and the 70's drag car nostalgia thing is great if that's what you want to do. But if you want those tires to actually fit you'd need a 3" spring relocation and a mini-tub.
So my point is that you have to be careful about what people say they fit on their car, because there's more than one interpretation of what fits. Sorry, rant over. :rolleyes: