[dbaker08723]

For what its worth....

My side pipes bracket was welded to the pipe and bolted rigidly to the frame. The drivers side pipe cracked (right at the weld)
I called the manufacturer (Lone Star) and they said to put about 3/8" or more of sheet rubber between the frame and bracket...

I had the pipe repaired, put in the rubber and so far so good.

I took the pipe to a place that manufactures Tuna towers for fishing boats... they are really familiar with this kind of work..

good luck....