Getting ready to replace my clutch and nv4500 (previous owner ran wrong oil) in my 05 2500hd. Looking for suggestions on which brand to go with for the clutch. My local Napa carries LUK and claim they are great. Summit carries Zoom and centerforce but the centerforce kit is $900+. I don't mind spending the money if it's worth it. Anyone have any experience with the Zoom or LUK? The truck occasionally tows 5000# on the weekends. 2005 2500hd 6.0 and nv4500, 6" lift and 35s.