dragr1, I went with the dual, quiet disc Valair. The clutch itself is quiet, but... the tranny (aluminum case) amplifies the diesel harmonics. The noise is quite noticeable when under heavy load at rpms under 1500. I changed to a different lube ( Mobil Delvac Synthetic Transmission Fluid 50 , the American version of what Mercedes uses in Europe in this transmission in medium truck service). This quietened the tranny some, but is a little stiffer to shift when cold. We use the truck in sub-zero temps, and really is a non-issue. Also, recommended on the Dodge Forums...add 1 additional quart (must be done thru top when shifter is removed for clutch change) as this will also help quiet the tranny. You must fill thru the top, as tranny,side fill port will not allow the extra quart.
The clutch kit will also come with a new, larger clutch master cylinder, which will reduce the effort to push-in the clutch.
I hope that this helped with your decision. You may also go to Dodge Cummins Diesel Forum.... they have more answers than you will have questions. If you want to learn “anything” about a Dodge Cummins...it’s there!
Good Luck in whatever you decide to do!
