Can someone put a big cam cummins damper on an n14 select? Have bad vibration

I have an engine vibration at higher rpms. My balancer and pan were both tan at one time so my father is saying it's got the wrong balancer. It's probably from a big cam. But I don't think it would fit the n14 select and if so. Wouldn't it vibrate all the time?

A local Mechanic is saying clutch or injector issue. Doubts it's the wrong balancer.

 

No. I'm going to service the truck tomorrow..

We tried to adjust the clutch but it won't budge. Alot of the vibration goes away when we push in clutch.

 

We have already checked everything else in the driveline and now we're at the clutch. Since we can't get the adjustment to move on the clutch and alot of the vibration goes away when u push in the pedal we're assuming the clutch is bad . I also found one of the bolts broke off that hold the clutch to the flywheel. We will be pulling the clutch today.

So it seems the entire engineu was tan at one time.so I guess the balancer question is irrelevant now.