Towing a 2640lb 16ft TT with a Ford Ranger 4.0L?

Biggest potential issue with the 4.0 liter from about 2002 and newer is the silly timing chains design. 4 Wheel Drive trucks used 4 separate chains, Two wheel drives use 3 separate chains, and the nylon guides deteriorate in chunks, potentially clogging oil passages and also leading to the chain jumping time. One of the chains is conveniently located on the back side of the engine and can only be serviced if you either remove the engine or remove the transmission.