Thanks everyone. From what I've been told, the steering is particularly good on this truck. And, with all your feedback, I think I'll simply start by cleaning it all up and replacing the fluids in the swivel and diff and see what happens from there! New to Series ownership, but my dad had a...

Sorry. I can't figure out how to delete.

Unfortunately I won’t be able to check for lift in the diff pinion until I get the truck delivered. Thanks much for the feedback.

Looking at purchasing a 1979 series 3 109. During inspection I was sent the attached pic of the front diff completely covered in oil. What has me confused is there’s oil on both the top and bottom. Obviously I’m dumb here. Is this simply a leak between the housing and the diff or something...