I have a 64 F-100 that I need to identify the rear end. I know I need to replace all of the seals and possibly bearings. The front and axles ends are leaking. I have found the following #'s on it.

8F19 DIF 42

DIF 865 C5AW 4668A or 4688A (the 3rd digit is hard to read)

First set are on the carrier housing and the second set are on the pinion bearing housing. Also the fill hole is on the driver side and it has 2 dimples in the back of the main body.

Any ideas?