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RX-7 2nd Gen Specific (1986-92) RX-7 1986-92 Discussion including performance modifications and technical support sections.

 
 
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Old 04-04-2011, 06:03 PM   #22
infernosg
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Quote:
Originally Posted by Trots*88TII-AE* View Post
My question is how can a spherical bearing give enough play to force camber adjustment while Delrin cannot? I would've thought that the bearing would be under more stress and would fail if adjusted too far under constant driving.
Simply the fact the spherical bearings allow rotation/movement along more than one axis. As Josh said, the delrin mounts only allow movement in one direction. I have the spherical bearings installed and I am still able to get the desired toe settings.

Regarding "solid" mounts I'm a firm believer there needs to be play SOMEWHERE in the system. If everything is solid the vibrations get transferred right into the mounts and THEY WILL ultimately fail (low-cycle fatigue). As Ted said, you want some movement at the differential cover or you will break the mounting points. I only went with delrin subframe bushings was because the stock ones needed to be replaced and I could get both delrin bushings for less than the cost of one OEM bushing.
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