i think it needs a service

[anderson]

https://www.youtube.com/watch?v=_rNBSmJy2AU 1917 buick rear end

 

[supton]

Looks like a "filled for life" lifetime oil to me. I'd run it for a bit longer, would hate to spend money on unnecessary service.

 

[anderson]

oh most definitely , one should probably add a quart of lucas oil stabilizer to extend the life of that sealed unit