Only one more question and possible issue. I put the chain and tensioner on and it doesn't look right. The tensioner seems either on wrong or the chain has "stretched". Do I need to replace the chain to finish up or will this work ok? Again--no pictures anywhere on the internet and no specifications from JD regarding chain tension for this tiller using this tension block. I may just install it on the tractor and observe the chain movement before I make a mistake and put the grease and cover back on.