Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions

We have a 2001 Sears Craftsman 2000 Lawn Tractor with a hydrostatic transmission.  The engine starts, and seems to run fine.  The problem is, the tractor will not go forward or in reverse and the front and back wheels do not or will not turn.  Right before this happened a pop was heard in the engine.  What could be causing this?  Is it repairable?

            Thank you for your time, consideration, and cooperation. I hope to hear from you soon,

           David  

its a NEUTRAL LOCK OUT REPAIR KIT #799032.

ITS LOCATED INSIDE OF DIFF.SIDE OF UNIT.

also pump no is.#794788 but is most likely ok....