My clutch is beginning to slip and im wondering on yalls opinion on which clutch would be the best for my uses. I pull a stock trailer almost everyday, and a 20k Hay trailer quite often. I don't want to loose driveabilty, but want to have longevity and reliability. Whats yalls opinion on South Bend vs. Valair and DD vs single Disk and the best material for my use, i like the stock feel of the clutch but if i have to change that i guess thats one thing that will have to change.