while i prefer a manual shift, a automatic can get the job done. ive never considered a auto in a truck untill we got a '77 F250 4x to replace the '74 F250 (farm pickup) the '74 was a 2wd with the 300, creeper 1st 4 speed and 3.73's it would pull whatever you asked of it, get 16 mpg empty and had enough chassis weight than being a 2wd wasnt a problem like todays trucks. the '77 was equipped with the 400, C6,full-time 4wd and 4.10's we got a plow for it and one winter when it got bad i actually made money driving that truck all day, a truck that got 9 mpg no matter what. it pulled 3 wagons of wet corn out of a feild with no problems. sadly it has been retired and the current farm truck is a '94 F250 with the 351, 3.55's,E4OD and manual hubs/transfer case 4wd. it may get better hwy milage than the '77 but isnt near the "puller". as far as ranger-based vehicles go, get the manual, dont tow in overdrive, and have at least 3.73's your biggest issue with using a ranger to tow isnt getting going, its getting stopped. even with my empty 1,000 pound box trailer, getting stopped can be a issue. expecially when the road is wet.