Torque Arm vs 4-Link

[stab6902]

So what is the design solution for these failures? It seems they are all done this way.

Don

I totally believe what Donny says regarding even 5/8" bolts failing. We didn't even talk about fatigue yet... lots of smaller hits can do the same damage over time.

The best solution is to run the factory style bump stops between the axle and frame rail like Donny said. Cycle the suspension without springs, and make sure the bump stop is really what limits travel.