Thanks for the reply and advice. I will work clean this up this weekend.

I took my donor starter apart today because the gear would not move. The outside case looked very good but I discovered it had a layer of rust inside of it. I did not think it looked to bad, but would like some advice based on the picture I took of it. Thanks

This truck was surplussed to a local county. I do not think it was ever used just parked in a field and left. The truck is missing a starter that I have since found .

More pictures.

I just bought this last month out of a farmers field. Parked for the last 20 years.