I'm looking at an awesome 71 fj40 in great mechanical condition, (lift and the works) with a locker in the rear. But when you engage the clutch the transmission clunks, it does it regardless of good or bad shifting. It just seems like something in the drive train is loose and takes a second to engage. The previous owner says that it is just because he keeps the clutch high but I'm not sure whether to believe him or not. I really like this truck and want to buy it but I'd like to know whats going on.