On a vehicle that old, I suggest calling Remco directly. I think they will tell you the manual trans is towable as is and the auto will require a driveshaft disconnect. The disconnects are not bad and quite reliable, had one on my wife's 02 explorer for 10 yrs and 100k miles. Towed it better than 40,000 on top of that.
38ft 2008 Damon Daybreak 3575 (forward kitchen)on Ford 22,000lb chasis, 242" WB.