Noisy Exhaust

[SJohnson]

I hear a vibrating rattle noise coming from my exhaust pipe with my pac- brake on,people pull up along side of me & ask what is wrong with my truck.

1995 3500 4" exhaust 5 speed transmission K&N air filter & TST power kit.

 

[roadranger]

I'd suggest crawling under there with a rubber mallet and banging around to find out what loosened up under there. If everything seems tight stem to stern, check out the butterfly valve in the Pacbrake.