Dale;
VOV has an aftermarket part number for the inner seals, I believe it is either a NAPA or CR number, check his website under the PARTS section or CHEVY SPECIFICATIONS, Bob Muller is a very good person to deal with, his number is 518-872-1002. For the outer seals, contact Rex Ward DUKW parts, www.dukwparts.com. He is located in England.
The bearings are NOT lubed by gear oil, you will have some seepage of gear oil, but they are lubed with bearing grease, if your steering knuckles are full of muck (combo of gear oil and grease) then your inner seal in the axle tube needs attention.
Also I would suggest getting a TM (technical manual) for your truck, VOV has them for sale.

good luck

John Gott

1942 G5106 1.5-ton Chevy cargo dump Gallery page




Old Dominion Stovebolt Society
T/Sgt. Gott (28 years of service with the USPP)
1940 Chevy G506 4112 cargo dump
1942 Diamond T G509 969A 4 ton wrecker
1942 Ward LaFrance G116 series 2 10 ton wrecker
1944 Ward LaFrance G116 series 5 10 ton wrecker
1931 Ford AA with a WEAVER crane
1944 Sterling HC 165 tractor
1944 Autocar U7144T w/ 10 ton trailer