The hymes on ours are for a track car. The problem I have seen with the poly LCA's is the arm moves front and back. Very noticeable when you put the car in reverse and hit the brakes. What does that do when foot braking the car and leaving off the brake . We saw that the only thing holding the LCA forward. is the torsion bar and the clip. I have seen race cars with them on and they drill the torsion bar socket at the rear and put a bolt through. But just relying on the clip with shims is not the way to go.
No one ever thought it through on the LCA moving front to back with poly bushings. The OEM if installed and tightened at ride height don't rip. If they are tighten at the lifted position then let the car down the rubber helps lift but when the rubber breaks free from the sleeve its shot. Because it allows forward and rearward movement. Put your car on the lift and pry the arm back at the K-member with poly bushings it moves front to back at least 1/2 to 3/4 inches.
As far as the struts, Without the shear sleeve the K-member gets ruined. This is the reason they went to the two piece bushings with the molded steel in them. Some replacement rubber strut rod bushings don't have the sleeve either. But the rubber is more forgiving then poly when used and last longer. I have not taken a set of poly off yet that the male nipple that seats in the K-member wasn't gone. I didn't install them they were installed by other shops and owners. The cars come here because the steering wanders on our PA. wavy bumpy and **** roads . I agree that when you look at the bushings on cars installed they look fine . Take them off and inspect them you will see the bushings are wore and tore. No one will ever change my mind on what I have seen with my own eyes. I will never install poly on lowers or struts.
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