I already have lower adjustable
Dynamic strut rods. They are hard to get orientated such that the Heim joint won't bind. One alignment guy loosened them up, turned the Heim 90*, that was not helpful. As I said they are getting noisy from dirt and water.
One would think that an adjustable strut rod would take care of a caster problem. That is why I installed them a few years ago. I think some of the problem is today's techs doesn't understand our old cars four front end adjustments, and the order they need to be set.
As for the flimsy looking arm, remember they are held in place by two sheet metal ears and a cam bolt. I have to think some mechanical engineer has made the calculations & put his PE Stamp of approval on them that satisfied the lawyers and product liability insurance paper pushers that adjustable arm is stout enough.
I don't plan on jumping any streams AKA Dukes of Hazzard stile. The SPC parts look better built than the first set of tubular arms I got from CAP c 2009. Those were held together with a small bead of weld at the ball joint ring with no gusseting, poor water sealing & grease retention, and no bump stop provisions.
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67' Dart GT Convertible; the old Chrysler Corp.
82' LeBaron Convertible; the new Chrysler Corp
07' 300 C AWD; Now by Fiat, the old new Chrysler LLC