The original is a dual mass which will be in poor condition. The guidance is to replace with an Exedy single mass kit which includes a single mass flywheel.
Of note the Exedy single mass clutch kit does have some of the damping required of a dual mass, other brands will cause the unwanted NVH.
thanks everyone. it turns out the noise was due to timing chain
had it replaced at billcar today. great job. very professional and friendly. truck now runs real smooth with no noise. my chain was on its last leg and i was very lucky not to trash the engine