After 210k on my 97 2500, the original stock muffler has a baffle or something broke loose inside, and it's vibrating & rattling. The old tail pipe is starting to get a few rust or corrosion holes in it. I thought about going with a new 4" system, but I was always pretty happy with the stock sound, & it always ran great. I may not keep the truck forever like I thought, so could get by with a used set. Any of your 4" converts got a good low milage set I could use? I think 94 though 97 are about the same, the 98. 5's have the angled cut on the end. Let me know!