Bobo57
Well-known member
I’m sure that’s distressing for the OP, was there a way to fix his issue without this? Maybe this can be corrected by welding up a patch?The caster adjusters work very simply. They used to be on all straight axle 4x4s due to tolerances at factory. The idea is simple. To increase or decrease caster all that needs to happen is lengthen or shorten the control arms. So a cam adjuster bolt is doing that at the lca connection to the axle. They are often called eccentrics. Because as you can see in your picture they are not round. So the act of turning the bolt moves the connection between the axle and the LCA forward or backward. Thus increasing or decreasing caster. So to make room for that movement on a JL/jk the hole must be elongated. It needs to be elongated enough to actually have an impact on caster. So .25-.35 inches. As you can imagine that sounds sketchy, If that gets loose or is jarred off road it slides even at 120 ft/lbs of torque that is applied. The cam adjuster is designed to try to stop it but once it slides, it always slides. And the connection of the LCA to the axle right there is critical for proper handling and steering, as you found out, hence your report of steering problems.
With so many aftermarket options for adjustable LCAs or geo brackets the practice of adding an eccentric has long been gone. And it is typically reserved for the good ole shops or dealerships, since mopar makes no LCA that is adjustable…. There is not anything that can be done now. if you look at that cam kit it is not compatible with your 392. So If you run into trouble there are a couple cam elimination kits out there for dodge trucks from synergy that you can try. But trade it in at the first hint of death wobble.