Rear bearings, green vs timken

My old V code 70 RR had the livin' you know what run out of it. The rear bearings lasted nearly 100K as I recall. I'd say if the axle seal surfaces are in good shape stay with tapered. Adjustment is not that hard, and is right in the shop manuals. A tapered roller, all things being equal, has much more side load capacity than a ball bearing of similar size

If you are narrowing a housing I can see that greens might be easier