valhalla360 wrote: I assume we are talking about the hubs (out by the wheels), not the differential (aka: pumpkin) in the middle.
Unless you are heavily loaded or have other reason to believe you are putting more strain than normal on the bearings, I would pull them apart to make sure they still have grease in them and there is no other apparent damage.
Obviously you are talking about something you know nothing about. Those full-floating axels are lubricated with the gear oil in the rear end not grease.
enblethen wrote: I recently had work done on my Chev P-30 including rear axle bearings and seals. Ordered parts as shown for Spicer Dana 80. None of the parts were correct as the axles were different then shown for Dana 80. My axles did not have flange on end but a sprocket. Seals were larger on mine. Spindles style were different. Bearings were flat and not tapered.
I don't think anything we say now will help the OP other than to take it to a shop.
Let's discuss your P30 rear axle. I would imagine the sprocket was designed to splash gear oil onto the bearing in motion. That makes sense and is great engineering.
Is the axle in an RV or a commercial spec truck like a FedEx or similar usage? If in a RV the body manufacturer may have speced it that way to avoid issues. In the medium and heavy duty world they will build whatever you want if enough units are ordered.
No, the sprocket is the drive. Most have a flange welded to the axle shaft. Mine has a sprocket that engages to the hub assembly.
Mine are like this axle
If the rig is not tilted to each side, there may not be sufficient oil in the hub assemblies. Must tilt each direction then top off differential fluid. Took about an extra quart.
Bud
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