Walker Old Model

[Cheesebread]

I have a Walker MC with the GHS hopper, can't find the serial number tag on it and I know where to look. It didn't have an engine when I bought it and I am wondering what size engine I need to put in it and shaft diameter.??? It is old and has chain driven hydros it looks like. so I know its old.
Anybody have any ideas??

 

[hardaway1]

I have a early 90s model and the number is on the back portion of the frame that comes together over the rear tire. attached is the kohler engine models that are possible for walker mowers in the early and late 90s.

 

[Cheesebread]

thanks! That atleast gives me a better idea on where to look.