Polyurethane LCA bushing ? ( UTG VIDEO)

UTG video today hes changing LCA bushing ,and he said he found a poly bushing that you install but leave the metal shell in there and put in a polyurethane bushing, Anyone ever hear of this type before? or is he blowin smoke again
Why does it take UTg to tell you what energys website and instructions have said to do for decades?
My advice is ...STOP TURNING TO YOUTUBE FAKESTERS FOR INFORMATION.
They are nothing but copycats and fraudsters. Period.