Great question, Jeff!
When the Rota-Flex first came out it renovated what a pin box could do and be, but at this point in time that technology is a little more dated and the Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box # 325-GH-8040 is the "new kid on the block" so it is definitely an upgrade to what you currently have, and you'll be happy with it for sure.
The part number mentioned above will fit in place of a Lippert 1621 or 1621HD pin box and is great for a calculated tongue weight... view full answer...
According to my research, the factory controller will indeed need disconnecting before you install the aftermarket controller. Before disconnecting the ITBC (Ram-speak for the factory brake controller), you'll need to get the computer flashed at the dealer so that disconnecting the controller doesn't set off warning lamps/buzzers. I was told that the aftermarket controller would not work with the factory controller still installed.
For your Tow Pro Elite, you'll also need the # 331-TPH-020... view full answer...
Go To Results