Finally locked in what track im putting on my sled, got a brand new 136X15X1.25 inch camplast track with the connected cone design. Got it brand new, "BUY IT NOW" on ebay for 199 dollars unreal deal I do have to say. But when I change my track should I replace the bearings in the shaft that drive the track even if they are not bad? I heard people say, "you have it apart might as well do it" and I was just wondering if this is what I really should do? The sled have 4000 miles on it, with the same bearings, all though speedo works find, i get a little rachet every now and then over a bump or something but I think my track is a little bit loose. So I was just wondering when I have the shaft out change the track over should I put in new bearings? Also a question I have is, do you guys know how much they cost? thanks alot!!!