Advantages of aftermarket upper:lower control arms

Lots of good info. 72nublu has good background info.
I’m a vendor, make and sell many parts into this market. Having a pro touring style Dart for 37 years and competing in everything from Real Street Eliminator to Optima Ultimate Street Car has given me some experience.
The adjustable arms I sell allow a large range of adjustment, but more importantly it doesn’t rely on eccentrics to align. Given larger tire sizes and universally inept alignment techs, this style arm takes a lot of guesswork out of alignments. The Delrin bushings I make are superior to any urethane considering their hardness and longevity. The adjustable strut rod ensures the lca bind free movement.
My site is Bergmanautocraft.con. Many of these parts are in the suspension section. I’m available by phone,email, text and messenger most of the time.

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100%!

And still I love that GT of yours.

And for everyone else, Peter is great to do business with. I don't run all of his parts, but I do run several with his SPC UCA's and delrin LCA bushings (on multiple cars). As well as parts he's a vendor for, the TTI shorties that will be on my '71 GT came from Peter. He's a great resource if you're building a Mopar for handling.