Hey Kyle!
We have a variety of trim pieces for trailers (see attached link) but since the design will vary from trailer to trailer I'll need some dimensions and possibly some photos to see if anything we carry matches what you're needing to replace. view full answer...
Hey Samantha we can definitely help you determine if the MORryde StepAbove STP -213 part # MR28RR can fit your 2020 Grand Design 351 Momentum but we don't have the fit confirmed because we aren't sure of what the door dimensions are. So what you need to do is just basically take a couple dimensions and you'll be good.
As long as your door's threshold is between 36-1/2 inches to 42 inches from the ground and is between 27-3/4" - 30-1/4" in width from within the threshold these will fit.... view full answer...
The dimensions of the Lippert 1621HD are going to be the same as the MORryde Cushioned 5th Wheel Pin Box # MR84VR so you won't get any type of added clearance.
The only way you can get added clearance is by replacing your pin box with the Reese Sidewinder # RP34FR. view full answer...