There are two basic types of adjustable strut rods:

1. With heim-joint ends (example: Hotchkis, PST)
2. Without heim-joint ends (example: Firm Feel).. using poly bushings.

Advantages, dis-advantages, of each design? Both designs assist in keeping the LCA pulled forward properly, as well as to gain more positive camber.

Longevity of both designs?

Car (my Challenger) is driven minimally on the street/hwy for wknd events (cruises), but also a high concentration in pylon AX and road course HSAX/HPDE.

Would the heim-joint design eventually fail?

What type of bushings are in the heim-joint design? They appear to be flat metal plates (no bushings?).

Would the poly bushings (using Firm Feel strut rods) eventually fail (instead of using rubber bushings)? I've used the stock factory setup (non-adjustable) with rubber bushings forever and have had no problems... after ~30 years, they still look a-ok.

Winter project in-progress.

T/Anks ahead!

Last edited by Mopar Mitch; 11/06/15 05:14 PM.
Mopar Mitch "Road racers and autocrossers go in deeper and come out harder!"... and rain never stops us from having fun with our cars... in fact, it makes us better drivers! Check out MOPAR ACTION MAGAZINE, August 2006 issue for feature article and specs on my autocross T/A!