The most sound advice that the reps can give the customers is to measure your car carefully and call back when you’ve done your homework. Aftermarket parts often throw off tire and wheel fitment, and of course variables like rear end width and ride height affect tire and wheel fitment. When it comes to a car with stock suspension and stock brakes, these applications are a little more predictable. And in most cases, the customer service reps are not authorized to provide definite answers because every car is different.

It’s common for Coker or Wheel Vintiques to be faced with the ultimate question of “will it fit?”. reproductions of tires and wheels for muscle cars, as well as modern renditions of those classic designs. We spoke with the tire experts at Coker Tire Company, and the steel wheel experts at Wheel Vintiques to get the scoop on proper tire and wheel fitment for your Mopar. However, when we add the extra bit of material on the outer edges, we have a total of 4-5/16 inches on the front side of the wheel mounting surface. Simple math would’ve told us that a 15×8-inch wheel with 4-1/2 inches of backspacing would’ve had 3-1/2 inches on the front side. Above right: In the case of this Magnum 500 wheel, we’re working with 4-1/2 inches of backspacing. Backspacing is measured from the mounting surface of the wheel to the outer most surface of the rim (not the bead seat).

We’re showing 8-13/16 inches overall, but this can sometimes vary between aluminum wheels and steel wheels. This number plays into your backspacing measurement. Even keeping with the tried-and-true 14- or 15-inch wheel design, your options are wide open.Ībove left: It’s still important to know the overall width from the outer most edges. With the availability of such a wide range of tires and wheels, settling for the original size seems like you might be leaving a little bit of real estate on the table. Actual dimensions vary by more than two inches in diameter, tread width and section width, and then the obvious difference in wheel diameter. Compare that to the Hellcat with 275/40R20 tires, and you have a difference of great magnitude. The Superbird, in all its glory rolled on F70-14 bias ply tires, which equates to a 215/70R14 in modern P-metric radial sizing. Let’s take a moment to compare two supercars from the Mopar camp, a 1970 Plymouth Superbird and a 2017 Dodge Challenger Hellcat.

The fact of the matter is that our glorious muscle cars came from the factory with pitifully small tires and wheels. And chances are likely that if you’re reading this, you want to put larger than stock rubber on your car. Dialing in tire and wheel fitment is something that requires a little patience if you’re trying to stuff the largest possible combinations within your stock-bodied Mopar. The wrong tire and wheel fitment can also cause your vehicle to stand out, but not in a good way. Correct tire and wheel fitment, when combined with the right stance, can make any car stand out in a crowd.

1972 nova stock wheel offset