On my KL, which I did back in the 90s, I opened the axles to replace the inner seals. If I recall correctly, on the front axle you need to separate the axle in order to do the long side....the short side could be done from the outside. It was a PITA, and theoretically you would need the correct thickness gasket as that sets the backlash for the differential.
I just checked a 3 ton manual sitting behind me, and group 4702 is for those seals.....4 used on the Ford split type axle and located right next to the differential bearings.
The UCs for some reason did not use that method and instead used the GM seal in between the adjusting nuts for the wheel bearing.
Last edited by rob love; 02-06-22 at 17:22.
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