The extended tow bar I use for my un-lifted 21C is a CURT 45320 dual length ball mount which has a 4" drop. I have abount an inch clearance when the tailgate is down. This works for a manual jack but would not work with an electric jack which is much more bulky than the manual version.No problem. I tow a 2014 21C with a 2016 RAM 3.0 EcoDiesel 4x4 which has the same torque and 100 fewer horsepower than the 5.7 Hemi. I use a single CURT 17200 trailer anti-sway bar control kit and have Timbren air bags on the truck at 25psi while towing. My 21C weighs 4200 in travel mode. I migrate annually between Fairbanks AK and Gainesville FL, towing so I have seen most towing conditions. RAM Hemi drivers I have quizzed seem to average 11-13mpg towing. I do around 16 with the diesel. A slightly extended tow bar will let you fully open your tailgate if the TV and trailer are lined up. Mine is CURT and rated for 7500 lb. You will need a 4" or 2" drop depending on whether your 21C is lifted or not. I never wish I had a heavier capacity truck.
Oops, CURT 45230 (11 1/8" long, 4" drop) not 45320. Others that may work are CURT 45260 (12.25" long, 2" drop) or CURT 45270 (13" long, 4" drop).The extended tow bar I use for my un-lifted 21C is a CURT 45320 dual length ball mount which has a 4" drop. I have abount an inch clearance when the tailgate is down. This works for a manual jack but would not work with an electric jack which is much more bulky than the manual version.
We have been towing our 5.0 now for years with our RAM 1500……tows greatJust purchased a 2018 21C from ETI and it will be delivered in mid-December. GVWR of trailer is 5008 lbs. GVWR of my Ram 1500 Laramie is 6900. Payload is 1441 lbs. Opinions on whether my TV can handle it OK?