As part of an engine overhaul I'm going to install a new clutch disc and pressure plate. The flywheel has been resurfaced. Looking for advice, so a few questions: Some of the discs I see advertised do not have any type of springs in the center section, just the friction material, a flat plate and the center hub for the spline. Any opinions on this type of a disc compared to one with the center spring assembly. I always thought the springs were there to help absorb the chatter. Pressure plates seem to come in 2 styles, one has narrow fingers (1/2"), and the other has wider fingers (1/1/2") wide. The one removed from the tractor has the wide fingers. Is one better than the other,(stronger-more reliable)? Prices vary for the different styles for both the disc and the pressure plate. Any recommendations will be greatly appreciated. Bill