1970 duster slant six 8.25 rear swap
On a stock Duster/Demon/Dart Sport there's ~13" from the inner wall of the wheel tub to the quarter lip, give or take the factory tolerances. That ignores the springs, with a 1/2" offset the inner wheel tub is the limiting factor but with the stock spring locations you lose a little more than a 1/2" to the springs. A 325/50/15 has a 13" section width. On my car even with the quarter lips trimmed all the way back to the spot welds there's only about 13.5". If the car sits low enough that the tires actually sit inside the quarters you need a 1/2" of clearance to the quarter alone. Those 325's work for the same reason the N50's on diymirages car worked, the back of the car is high enough that the suspension travel never puts the tire inside the wheel tub or quarter. Those tires will not fit inside the wheel tub without rubbing. Meaning, if you lowered the car an inch from where you're at now they'd rub like crazy. Sure, they're on the car and they probably don't rub at your current ride height, but, that doesn't mean they actually fit. I can put 35x12.50x15's on a Duster if they don't actually have to fit inside the wheel tubs, piece of cake.
Taadaa! They fit! :rolleyes:
On a stock Duster/Demon/Dart Sport there's ~13" from the inner wall of the wheel tub to the quarter lip, give or take the factory tolerances. That ignores the springs, with a 1/2" offset the inner wheel tub is the limiting factor but with the stock spring locations you lose a little more than a 1/2" to the springs. A 325/50/15 has a 13" section width. On my car even with the quarter lips trimmed all the way back to the spot welds there's only about 13.5". If the car sits low enough that the tires actually sit inside the quarters you need a 1/2" of clearance to the quarter alone. Those 325's work for the same reason the N50's on diymirages car worked, the back of the car is high enough that the suspension travel never puts the tire inside the wheel tub or quarter. Those tires will not fit inside the wheel tub without rubbing. Meaning, if you lowered the car an inch from where you're at now they'd rub like crazy. Sure, they're on the car and they probably don't rub at your current ride height, but, that doesn't mean they actually fit. I can put 35x12.50x15's on a Duster if they don't actually have to fit inside the wheel tubs, piece of cake.
Taadaa! They fit! :rolleyes:
