Well like I said before I bought some used tracks but when I put them on the stuck in the sproket because they were the wrong pitch. SUCKS. I even has bought a new Tucker Rubber belt but it was 5 7/8" too. So I did some more mesurements and find my original tracks have anywhere from 6-7" pitch. S o I decided to take a gamble and shoot for 6 1/16" spacing. I bought the rubber to do all 4 tracks but decided to just build one to make sure that spacing worked. I set up a jig to drill all the holes whch worked out great. Bought new laces and hardware and decided to buy all new nylock nuts and the loose bolts got replaced too. Put it all together and it seems to work. I will now punch the other 3 sets and begin to build them. My yard looks like tracks just blew up. Rubber and cleats everywhere.