LTX1000 Craftsman RiderTransmission not pulling

I have a LTX1000 Craftsman Rider. I can lift rear and engage forward and reverse and wheels turn. When wheels are on ground they don't move.When I put in gear Transmission sort of growls but doesn't move. Belt seems fine. Any suggestions?

When was the last time the belt was changed? If it has been three years or more I would start there. While you are doing that you should also check the idler pulleys and tensioner arm, making sure that they are in good condition and moving freely.

If the transmission has a growling/ buzzing noise when you try to move it, that means it has had a drive fluid loss more than likely, or the hydrostatic transmission has given out.

This machine being roughly 20 years old, maybe a low hour used one is available from a backlot at a large mower shop if you have such a shop still around your area.

There were a lot of these around, some still are. Others have simply been taken to the metal salvage and are long gone.