About

High Output means the 385 hp/850 ft lb engine [1]. This indicates that all the 385 hp HO are the Aisin transmission models, in the 30k trailer size [2]
2014 towing capacities - [3]. 2015 towing capacities [4]. 2016 towing capacities - [5]. 2017 - [6]. 2018 - [7]. 2019 - [8]
For the For the 2013 model-year, Dodge introduced the AS69RC [9]

Ram 3500 HD

Ram 3500 Cummins Turbo Diesel Heavy Duty - This one is Heavy Duty - [10] - Ram 3500 Tradesman Crew Cab. 68RFE trans. But tow capacity above shows RFE to go up to only 22k lb.

Ford 37000 lb - [21]
About towing capacity of various gooseneck combos - [22]. HD AISEN transmission is required for highest rating.

2021 does it - [32]
2014 automatic diesel with HD transmission can do 30k lb [30,000 with the diesel engine and heavy-duty automatic transmission -[33]
2016 - auto diesel 31.2k [34]
2017 - 31.2k 2wd [35]
2013 - redesigned - 30k 2wd [36]
2012 - 17k 5.7l [37]
2011 - 23k [38]

2016 200k - [39]
Belton - $36500 [40]
Ram dually SLT - Illinois - $21k - Great value $8k lower than usual - 2012 - [41]
62k miles old $37k Texas [42]
177k miles 2002 $30k Tx [43]
Tulsa - $25k 93k mi [44]. But how do we know 93k is not turned over?
Diesel 339k mi - $13k [45]
711k mi $7k 1998 [46]
$34k 130k mi 2015 utility bed [47]
2017 103k $40k [48]
$34k St. Joe 130k 2015 [49]
$20k 170k [50]
Ram 3500 product family - [51]. See pricing low to high, some sellers deliver car to you.