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I think my subasm drive is not functioning on my Craftsman 30" mower (Model No. 917.28001). Is there a way to test it before I spend $$$? It seems to be leaking oil, and maybe it ran out of oil, but I couldn't find a fill oil.
thanks

CRAFTSMAN Riding Mower Parts | Model 917280010 | SearsPartsDirect

Amazon.com : Craftsman Lawn Mower Part # 441936 SUBASM.DRIVE : Lawn Mower Deck Parts : Patio, Lawn & Garden