I have replaced nearly all clutches with stock units in the few trucks I have even had problems with. I pull a 15,000 lb trailer weekly and have yet to loose one. I have also done numberous cummins repowers in GM and Ford platforms, all using stock setups.
Centerforce has only embarassed me once with a customer, never again. Total life was 3 months!!!! pathetic product, even worse customer service.
For my own trucks, I don't run super high HP ratings, but I use all I have on every pull up the rocky mountains. My current dodge had over 200,000 miles on the original clutch before I pulled it, which was still working fine, but I had the transmission rebuilt so it came out as preventative maintenance. I am all about saving money, but the labor involved in a clutch job for trucks is not worth going cheap on parts, especially 4WD's.
On a side note, try having the flywheel machined to accept a pilot bearing in place of the bushing, well worth the extra change, no more chirp from the bushing.