Preventive Maintenance suggestion: suggest we all crawl under the buss occasionally.
If I had I might have noticed the bracket holding the "Speed Sensor tube" into the Transmission
Fluid Reservoir was broken or severally damaged. As a result was stranded for six hours and several hundred dollars later on interstate. But excellent service from "Coach Net" got us back on road. Tow people went back to shop and made the part, I've ordered new $15.00 part at tow's advice from Allison.