I added “universal fit” receiver buy Curt to my 189FDS. Then moved my spare tire up to the front and upgraded to two golf cart batteries - this is to help rebalance the trailer for proper tongue weight.
The additional weight on the back can be dangerous if you don’t rebalance.
I have pictures of my setup in my profile
2013 Cruiser RV / FunFinder 189FDS
2017 Ram Bighorn 1500 EcoDiesel