My RV has a Spicer 130500 rear differential. I'm trying to find what fluid type is needed, capacity, and service procedure. I'm coming up empty handed though. My 2008 F53 Ford Service Manual doesn't list Spicer as an option.
Twinboat is correct.
The specs you list should cover your motorhome.
There should be a tag somewhere on the axle telling you which model Dana/Spicer axle assembly you have. But regardless...be sure it is level and refill with the recommended lubricant until it runs back out the fill hole. That insures the level is correct.