exolent

Yesturday i installed a 5" Turbo-Back straight exhaust on my 96 cummins regular cab 8ft bed. The down pipe is 4" and then goes right to a 5". I get alot of vibration when im in drive with the brake on, and also when i turn the wheel, im pretty sure its still hitting the engine bracket cuz it was worse right after we installed it so me and a buddy tried to bend it a little bit and it helped but not much and we called it quits for the night being 11:00pm. Does anyone know a good way to stop this vibrating/rattleing without breaking the downpipe flange bolts or anything else? should i hammer it in a few good whacks?

twinturbos

I just put the same system on my 96 club long bed. did the kit come with a hanger piece that goes on back side of t-case?. im assuming that its vibrating where the section of 5 inch goes through T-case crossmember. outside of the vibration it sounds like a friggin semi going down the road

exolent

yeah it sounds mint, turns heads everywhere, one of my buddies with a cummins has 4" exhaust on his w/ a muffler.. after hearing mine hes wanting a change haha

wcbcruzer

With a 4" downpipe it's a tight squeeze between the engine and frame. I cut and put a small piece of heater hose on the tranny line that sticks out and touches the downpipe. There's about a 1cm gap on the other side of the downpipe between the frame. Loosen the downpipe bolts at the turbo and adjust the position then tighten it down. I stuck a piece of cardboard between the downpipe and frame to keep the downpipe from touching the frame as I tightened the bolts. Then I removed the cardboard and the gap remained. Otherwise it would touch and rattle from engine vibration. Sometimes on a U-turn I still get a little bit of rattle there.

exolent

ok ill try it, thanks

prattman

Yeah you definitely need the hanger that goes into the tranny crossmember. It will hold everything from vibrating and twisting.