Most, but not all, rear wheel drive vehicles can be towed. It depends on how the transmission is lubed internally. Most are "splash" lubed with the gears and synchro's flinging lube around. If the oil is splashed around by output shaft then no problem. If lubed by the input shaft (engine running) then the trans wn't be lubed and can cause it to fail.
Owners manual may or may not tell you what you need to know.
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
Charter Good Sam Lifetime Member, FMCA, SKP
RV'ing since 1957, NRA Benefactor Life, towing '14 Jeep JKU Dragon Edition