Remco Driveshaft disconnects are available through Superior Driveline:
https://www.remcodsc.com/coupling/I tow a '97 Ford Aerostar (rear wheel drive) with no problems and no miles accrue on the odometer - the transmission remains in PARK while being towed.
The baseplate is another issue. Make sure your installation is up to the task.
I use and prefer the NSA's ReadyBrake
https://www.readybrake.com/store/c3/Supplemental_Braking_Systems.html It's given me great service for many, many years.
Don Ford
2004 Safari Trek 31SBD (F53/V10 20,500GVW)
'09 HHR 2LT or '97 Aerostar MiniVan (Remco driveshaft disconnect) for Towed vehicles
BlueOx Aventa II Towbar - ReadyBrake Inertia Brake System