Based on your description it sounds like you need a replacement motor for your landing gear. The correct replacement for your 1RV-200 is the # LC142178. If you need a replacement gear box as well then you can use the # LC276602. view full answer...
If you can send me a picture of your landing gear box I'll most likely be able to identify it. The most popular gear box we have would be the part # LG-179015 which fits most brands out there like Atwood, Lippert, and Venture. view full answer...
To get right seal you'll need to remove a portion of the seal to get the side profile of your current seal. There are multiple types of applications for slide-out seals; Glue On, Peel-N-Stick, Press In, Push On, and Slide-On. There are multiple styles and measurements the seals; some come with a bulb, some don't.
For example the Rubber Wiper Seal and Bulb for RV Slide Out - Stick On - 60' Long x 3-3/16" Wide # SR68FR you were looking at will come with the bulb and is a press on design... view full answer...
From previous customers of ours who had a 2006 Nuwa HitchHiker we know that the pin box type you have now is the 1716 model so for a cushioned pin box you would want the MORryde part # MR37VR. The weight range this pin box is designed to work with matches the GVWR of your fifth wheel I found online as well. I know you said you wanted an air ride pin box but we don't have any air ride style pin boxes that fit your RV and the MORryde is known to do an excellent job cushioning the ride quality... view full answer...