Depending on the diameter...
Depending on the diameter of the tire you wish to use, the front may need to be measured to ensure no interference with the lip of the fender. Note that our straight edge can't be centered on the front, so some interpolation must be used when measuring.
Additional Considerations
While we hope this tire fitment guide serves as a useful tool when determining the tires that will adorn your Mopar, there are many other resources available to help. A great way to figure out what tire-and-wheel combination will look good on your car is to find similar cars and look at their tires and wheels. If you're having trouble finding a car at your local shows or cruises don't forget to check out the pages of our magazine. We know the decision of a tire-and-wheel combination can be hard to make, so we try to print the tire and wheel size of each car featured in Mopar Muscle. Simply find a car the same body style as yours in our pages, and the Fast Facts page will give you the tire and wheel specifications of that car. Also, don't forget about your local tire store. Their employees can be helpful when considering tires and wheels for your ride. The tire manufacturers also have great web sites that can give a wealth of information about tire selection, construction, and use. Remember, though, that whatever tires you choose, the best way to show them off is by driving the car, and the best way to make sure they stay round is by smoking them to oblivion!
| TIRE SPEED RATING INDEX |
| Speed Rating | Test Speed |
| Q | up to 100 mph |
| S | up to 112 mph |
| T | up to 118 mph |
| U | up to 124 mph |
| H | up to 130 mph |
| V | up to 149 mph |
| W | up to 168 mph |
| Y | up to 186 mph |
| Z | 149 mph and higher |
 By placing the front rim on...  By placing the front rim on the rotor, we check for interference with suspension components. Notice how this Magnum 500 wheel, with 4 inches of backspacing, is very close to the upper control arm. This can also be checked with a straight edge and tape measure. Be sure to allow for wheel balancing weights that will be in this area of the rim as well. |  All factory rims and most...  All factory rims and most aftermarket units will have their dimensions stamped on the inner surface of the wheel as shown here. This is a handy reference at swap meets if a tape measure isn't available. |  Racing slicks and some other...  Racing slicks and some other off-road or performance-oriented tires are measured and marked in the old-fashioned way: inches. Note that the number on the left is the overall diameter of the tire, followed by the tread width, then the rim size. |