Let's talk Dana 80 axle temps

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.

I think we are off topic