What rear end is in a 28ft southwind 1978 motorhome?

The 1978 Southwind 28ft motorhome typically features a Chevrolet or GMC chassis, often equipped with a rear end that includes a 3.73:1 or 4.10:1 gear ratio. The specific rear axle can vary based on the configuration and options chosen at the time of manufacture. For the most accurate information, it's advisable to check the vehicle's specifications or consult the owner's manual.