Universal Traction Bars install on a Duster....

I hear ya. However, regarding what I said about what was what in the 70's-80's; Chrysler engineers said to use the methods I mentioned above. To me, I'd rather use what a Chrysler engineer said, as opposed to using a Chevy (and other GM's, and Fords, and American Motors, etc...) type traction bar. To me then and now, the simplicity of the Chrysler design was and is (at age 59) the ticket.
I should say however, the Lakewood bar that Grumpy designed, with J-bar and deceleration loop, worked and definitely looked cool; albeit it on a car that needed it. (But they rode like dookey on the street. The suspension was bound up.)

But that's not his purpose. His purpose is recreating a certain period look. He doesn't give a fig about what somebody else thinks is right.