Who makes rims in our backspacing?

Another thing that needs to be checked.....and that's if the body was built equally on both sides. When I did a set of 15x8 rallye wheels for my 71 Cuda, I did a mock up to make sure everything was going to fit well. Turns out the right side offset needed to be moved nearly 1/2" more than the left side. This car showed no evidence of ever being crashed. I even mounted the tires I was going to use on bare rings then pressed in the centers with a hammer and a block of wood and installed them on the car. The tires were 275-60-15's. There was plenty of room in the wheel wells but the springs were the issue and didn't feel like moving a spring. Measured the fender lip to the frame rail on both sides and yes, they were different from left to right and the frame checked out to be square or within tolerance anyways. I feel Mopar did a pretty decent job on chassis square but the body is another wide tolerance deal.

Years ago I bought a piece of NOS trim for the rear of my 70 Challenger. This was in the mid 80's when NOS stuff wasn't hard to find or all that expensive. It was that piece that went across the whole rear section and it didn't fit the car. It was a 1/4" too wide!! Thing is, it fit my other 70 Challenger perfectly. When doing the wheels for the Cuda years later, the Challenger thoughts came back.