Our rear door has the gas shock to hold it open. The front entry door has the friction hinges, and the catch on the side of the rig.
Just looked, no part number visible on our steps. Yes, our steps are the struts assist. You need to check, but what I understand is the strut assist steps are factory installed, non-strut assist is available for after-market installed.
I have seen the Flip-steps installed, it looks nice and takes less room when closed. We were at MorRyde 2 weeks ago, while getting solar installed, and talked to them about the Flip Steps. There is a "qualifier" to make sure the steps will fit your rig.
The Flip Tread RV Entry Step is ideal for normal entry doors as well as floor plans with interior steps that protrude into the doorway.
www.morryde.com
Since we lost some storage space during the solar install, we decided a sliding tray would benefit us better than the Flip Step install. So, we bought a new sliding tray.