So I just about finished under the front of my truck and moved to the back to take a look. What I thought was flaking paint on one of the trailing arms turned out to be rust, serious rust. The trailing arm on the driver's side has some rust through where the two halves are joined. I'm wondering if I should separate the halves and try to repair it, or replace it. If I replace it, should I replace both (the one on the passenger's side looks okay)? I did some looking and I've seen tubular and boxed trailing arms, but I've also read that these are prone to breaking. Should I stick with stock, or go to one of the after market styles? I'm not going to be doing any hard driving, just cruising with the 235, 3 on the tree, stock driveline.
