Bad knocking under feet

Cuda Al said
As has been said multiple times, bad broken/worn engine mounts will allow the engine to move more than it should causing the exhaust to hit the frame or t-bars.

The pipes may feel solid and not loose but if the engine moved so does the exhaust.

Try this, put it in gear and with your foot firmly on the brake goose the throttle a few times, I bet it starts doing it.
I just went through this, worn engine mounts (not broken). Replaced them problem solved.

Alan

Yea they are most likely worn. The 360 has mild cam and the engine does have some rumble and shake to it. The exhasut shakes with it and hits that part of frame. I believe doing this is the best solution as of now, but we will need to replece to old mounts at some point. Thanks.