My Toxic '74 Duster

autoxcuda said
granted this idea is a little “out there” and sorta complicated…

What about the possibility of Year One. 17x9 rallye’s all the way around? They have 5” backspace.

in front run 275/40/17 and roll top of fender lip and fold front lower lip.

in rear run 275/40/17 tires 3/8” to 1/2” spacers. And have dr Diff install longer studs on the axles he’s ordering

you’d have to get the rims and tires and mock them up now BEFORE the car is painted.

The front is kinda gnarly. A 9” rim with 5” of backspace is a full 1”+ further out to the fender than the 18x9’s I run with 275’s. It can be done For sure but it’s gonna be a pretty big roll and push on the front fender. A 255 might work a little bit better. Just about how much bodywork you want to do. The 17x9” Magnum replica’s have a 5.125” backspace, not much better but every little bit helps if you’re using all the space and then some.

In the back with an A-body width 8 3/4 and BBP axles I don’t think you’d even need the spacers. With stock spring locations and BBP axles I was getting like 6” from wheel mounting surface to the springs. So, 5” of backspace, 1/2” of tire overhang, and you’ve got a 1/2” of clearance. Just about perfect.

autoxcuda said
Willwood does have 6 piston 13" and 14" setups, right?

Yes, for the B-body drum spindles. I looked at the 14” kit for my Duster, even bought the drum spindles. That hub still has the 2.62” snout diameter too. Honestly for a 6 piston set up the price on that kit isn’t terrible either.

But only the 4 piston kits for the disk spindles. My biggest gripes are with the 4 piston kits, they’re really nothing special and the hub diameter is a killer.