Tubular Control Arms and Adjustable Strut Rods Now Available!

I currently have a pair of CAP tubular upper control arms installed on a 67 Dart with a negative caster problem that they corrected nicely. That said; I have a few concerns concerning their design, and yours as well.

First, like the CAP product, yours does not have additional gusseting between both arms inboard at the ball joint collar. This lack of gusseting gives me concern regarding cycles to failure at these two highly stressed welded joints. Has a mechanical engineer perform any stress analyses on your design, and put his stamp on it? What kind of stress testing have you performed on your design?

Second. Your rubber dust cup design looks to be superior to the CAP design that I am living with presently. Factory dust cup won’t seal, and CAP’s aftermarket cup does not seal fully to ball joint at any angle as well allowing dirt and water to infiltrate ball joint.

Reason for purchase of CAP UCA several years ago was its ability to adjust up to + 9 degrees, enabling a correction of -6 degrees on one side, and -3 degrees on the other side of my car. Your arm accomplishes the same correction which is a good, as I suspect my car is not the only old Mopar out there with poor front end geometry in need of help.

Third, I had a problem when jacking up front end, UCA would drop down missing stock conical bump stop, splitting dust cup from top to bottom, and once car was back on all wheels cup would fall off. Have you designed your arm to utilize stock bump stop. Or, dose one need to install a wedge stile lower control arm stop or special stop to correct this deficit?