cummins isx start up rattle

i have a 2005 international with a 500hp isx....after start up i hear a bad rattling noise from under the truck....if i raise the rpm's it stops..when it idols down the rattle comes back....when i tap the clutch it stops..or when i start the truck with the clutch pressed it makes no noise....it has a new clutch in it....new input shaft bearing and new pilot bearing...i dont know what else to do...can someone help?

 

i installed a lipe in it..i heard that they were back so i thought about giving them a try its a brand new clutch

 

excellent!!!!!thank you!!!! i feel better....how do you like your lipe?.....

 

i like the lipe so far.....the adjustment is easy and i couldnt beat the price for a new clutch

 

have you done your first adjustment yet?....i really take care of this truck...what the normal amount of miles i would have to put on it before i have do my first adjustment...any idea?