That's Henderson's bell crank, and yes, I put one on my rig five years ago.
I took my coach to Henderson's to get some help improving the handling. They checked alignment, added Motion Control Units, a Safe T Plus steering stabilizer, and the bell crank.
I think everything but the bell crank contributed directly to handling improvements. I'm not sure the bell crank contributes but I replaced it after seeing the design improvements and freedom of movement when compared to the OEM. Seemed like a no brainer to me.
Rick, Nancy, Peanut & Lola our Westie Dogs & Bailey the Sheltie.
2007 Itasca Ellipse 40FD