Was just setting the lenght on the Rusty's lfca's and was wondering why do you need to tighten or need a jam nut? For the lfca's, when at full flex, I would imagine the adj. flex joint that is attached to the front axle would rotate at the most almost a quarter of a turn either way, then rotate back. Would this added rotation near the flex joint be like the JKS control arms?

 

A jam nut on a rod end keeps it from rotating, and loads the threads so vibration will not cause the threads to wear out. If the threads are allowed to have relative motion between them, they will develop play in them, and eventually fail.

 

^^ This is true. Ask me how I know

 

How do you know?


Post up some pics, we like the carnage!

 

Was talking to neighbor about the jam nut and said the same thing, in that the threads are the weak link.