when checking wheelbase you should find the passenger front wheel slightly forward of the driver's side
by something like 3/8 or so
it IS visually notable as I've made note of it with all six of my own TM's and all my acquaintances fwd mopars too over the years
and can be demonstrated with a 215 60 15 tire
205-60R15 | 6.5 | 24.7 |
215-60R15 | 6.8 | 25.2 |
I had the same set of wheels & tires on my shelby z and turbo z
both cars , the driver's side tire cleared the front edge of the opening
on the pass side of both cars the tire JUST touched .. but not hard enough to rub the paint off either for the 2 1/2 & 3 years I drove each
(turbo z's also sit 1 INCH LOWER than a shelby z !!... diff is springs)
I believe the "long side" steers the "short side" in that it keeps the car straighter on the crown of the road
the only time anyone else has noticed it that I know , is when I stand beside their car , point and say , see?
the fender openings are mirror images of each other but the pass side wheel will ALWAYS be closer to the front edge IF correct
this applies to all stamped arm cars and I'd expect the same for the cast arms too...but my 92 daytona project was wrecked on the pass side with the wheel about 1 inch to far back so it had no reference value
- to add , it's said that some cast arms move the wheels forwards and some do not ..
this makes sense when you consider the 92-3 nose does not fit the 84-91 fenders.. because the front of the wheel well opening is modified
this change in the front wheel well edge is also visually notable as there is a slight "wandering " of the opening at the 9-11 and 1-3 positions (left vs right)
so there are 90-91 and 92-3 cast arms respectively
thus by the shared 89-91 front body work the 90-91 arms match the geometry of the stamped 89's
side note
the 92-3 fenders can be spotted if you have a chance to compare the upper back points at the windshield
the 92-3 are much softer point and edge lines are notably less crisp too
once you see that little difference , it's enough to know the fenders apart from each other as it looks like the stamping die got modified and polished , washing out some of the lines in the fenders