Clarktor 6 Tug Mill-33

[Miggs805]

Hi guys, I’m new to the forum here I was looking to get some help with the clarktor 6 Mill-33 Aircraft Tug that I recently picked up from my community college aviation program. I paid a total of $400 she looked in great shape but had not run in a few years but after replacing the carburetor and spark plugs she fired right up although she does run the transmission had water in the oil therefore it came out super Milky. It still drives but had the transmission is very loud except for one gear. I did notice the excessive pitting in the gears and was wondering if anyone is still rebuilding these or where I can hopefully find a replacement. I’m currently a helicopter mechanic and do plan on using this tug to continue to tow aircraft in and out of the hanger. If anyone could lead me in  any sort of direction I would greatly appreciate it.