Luk is OEM and they have a reputation for tearing apart the center of the disc hub. Supposedly they improved over the years. Most find the pilot bearing (needle bearing) kaput upon tear down. I think they are related. BUT that is my opinion from reading several others stories.
Dodge had problems with thier input bearing too. With a good pilot bearing the NV4500 seems to have better clutch life.
LUK is the cheapest and seems to do well with a good pilot bearing. South Bend comes highly recommended. Zoom was another that looked good to the eye. Centerforce has hi performance disc material but the pressure plate is the same as an OEM and not thier proprietary weighted fingers???
97 5spd K2500 Ext Cab short Bed ~160K miles.
TM, 3" downpipe & 4" exhaust, remote FSD, remote oilfilter, Gauges: EGT, Boost, Fuel Pressure, B&W Gooseneck Turnover ball, Prodigy Brake Controller. Hi-Temp Hydraulic Oil Cooler Lines.