RE 1660 trac bar axle end bushing replacement?

So my super flex bushing frame side is shot....anyone have a part number to delete the superflex bushing for a regular rubber or poly bushing?
On the same topic how much articulation does having that spherical superflex provide over regular solid rubber or poly?

is this the replacement frameside bushing?
https://www.amazon.com/Rubicon-Express-RE3704-Super-Ride-Bushing/dp/B006GJP3Y2

No that's the axle side bushing.