Gearing up to do a tranny filter/fluid change on our diesel pusher. Holds about 5 gallons of oil for a filter/oil change. Has a drain plug at least. My worry is finding genuine Allison filters. The counterfeiters are running wild out there these days, and are getting very good at it. $250 is the going rate from trusted sources for the pair of filters. Fluid will be another $250+. Still a lot cheaper than a shop, and who knows what they would use for filters and fluid.
