1989 MTD /Mastercraft riding mower, 46" deck. Was in pieces, now I have the deck assembled , with the belt, and the tractor engine to axle belt installed.What connects the engine to deck? A 3rd belt? Can't find any #'s 0n MTD site. Also have a small cable about a foot long that is connected to the idler bracket, where does the other end go? Thanks in advance.