As long as your existing landing gear have their weld stops in the standard positions as shown in the linked photo (15-1/2 inside to inside and 17-1/2 outside to outside) and the outer tube length matches then the Ultra-Fab 12K dual motor landing gear set # UF17-943010 will install easily in its place in the existing hangers. But if not the Ultra-Fab includes new hangers that you can weld to your frame. This jack system's high 12K capacity and independent motor control will make leveling... view full answer...
For your bike rack needs I recommend the Hollywood Racks RV Rider Bike Rack for 2 Electric Bikes - 2" Hitches - Frame Mount Item # HLY64FR. For the trailer hitch I recommend the Curt Adjustable Trailer Hitch Receiver - 18"-51" Wide - 2" Drop - Class III - 2" Item # C13701. We also offer bigger trailer hitch receivers if your frame is bigger than 51" like # C13704 which goes up to 66". view full answer...
We have not yet test fit the Lippert Components High-Speed Power Stabilizer Jack part # LC298707 on a 2018 Dutchmen Endurance 3556 therefore, in order to determine fit you will need to measure the distance between the two frame rails on center. They will need to be 68-11/16" apart or close in order for this system to work for you. If they are not then the only option we have is the Ultra-Fab Power Twin II Electric Stabilizer part # UF39-941705 which will fit trailers with frame rails between... view full answer...