Rear Duster Tire Size
My car does/did have a rake when I bought it
Long adjustable rear leaf spring shackles and traction/slapper bars
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A smorgasbord of bad ‘70’s suspension ideas. The long shackles screw up the suspension geometry, not to mention introduce more flex and instability into the rear suspension. And slapper bars aren’t all that effective on mopar leafs if the suspension is set up properly.
A set of 002/003 SS springs would accomplish everything that stuff is supposed to be doing while maintaining better suspension geometry and hooking better.
But if you take that stuff off without replacing the springs your current tires probably won’t fit.
The stock G50s (mounted) measured 24-5/8" tall
That’s a little taller than the conversion chart I was looking at, but that’s still a short tire. Personally I like to keep the tires at least 25-1/2” tall, especially in the rear. 26”-27” looks better. But unless you move the wheels further inboard or run much narrower tires anything taller than what you’ve got will probably hit the body.
The long shackle thing was just a cheap hack to raise the car to run those wheels. What you do to fix it depends on what you want. If you want to keep the ‘70’s rake and tire look get a set of SS springs. They’ll maintain the ride height and allow the suspension to work much better, while allowing you to keep hanging the tires outside the quarter lip without interference as long as you don’t get too crazy.
Or, if you want to set the car down to a more original or even modern stance, I would buy rims with the proper backspace. If those shackles have been on the car a long time you might still need leaf springs though, as the ones on it now are probably hammered.