1970 C/60 Parts help!!

[ats136]

I am looking for parts for my fire department's brush unit. It is a 1970 C/60 with 4 Wheel drive and a 366 engine. The problem is the steering knuckles have begun to leak, and I am having no luck finding the seals. It is a Napco front axle with a Rockwell transfer case. There is no ID tag on the axle and the only numbers I can find are: one that is cast into the axle and it looks to be a part number; and the other looks like a mfg date/serial number?? I have a parts diagram that I am pretty sure is for it, even though it says it's from a Ford
Any help in where to look is greatly appreciated.


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