Washer does not agitate or spin?

I bought this washer used from an appliance dealer. He said he replaced the transmission in it. Now out of warantee it quit spinning and agitating and makes a clicking noise kind of like something getting stuck in your bicycle spokes. Is there a shear pin that can be replaced or am I out of luck?
Big J, July 2010


done
belt is off.

chris, July 2010