I added this to my Ridgid TS3650 which had the front and back rail extension with 'T' slot that made installation super easy. Everything lined up perfectly except for the bolt holes to secure it to the existing table - an easy thing to remedy. After getting it all lined up, it's like it was always made to be there and I like that I can use the fence that comes with the table or my existing table saw rip fence, or both.
The added weight on the right does make it a bit unstable when I'm moving it around so I plan to add a drop-down leg for additional support, especially when routing large or heavy pieces.
Definitely one of my best shop tool purchases!!