The long drawn out rebuild of the OC-4 is about done. The sucker is up and running. Fuel pump leaks and the hydraulic pump seal is leaking. That's about all that is left to do. Took a long time to get the project done and the amount of money I spent on the darn thing would make John Rockefeller raise his eyebrows, but she's basically brand new from the ground up. 

The mechanic was driving it around to check the tranny and the steering and so forth remarked, what neat little bulldozer it was. He was impressed with the ease of the steering compared to other makes of the time. 

Kudos to the Zimmerman's for their help in getting the thing up and running. No doubt about it, they are THE place to go for Oliver crawler parts.