Healthy debate is GOOD.
Dick, you are correct about the foam bushings. <_< BUT, your foam bushing is tublar or a sleeve.
Now back to the spherical bearing that is a bushing. :119:
K, or anyone else, if you can find an OEM bushing that has the parts of a spherical bearing design (per the GCR glossary, one part concave & one part convex that allow angular displacement) then you have convinced me that a bearing is a bushing.
By definition a bushing is tublar or a sleeve, the GCR don't spec one part of a bushing is a convex shape & the other part of the bushing is a concave part that allow angular movement.
The rule spec is bushing material is unrestricted. The rule don't say the bushing design is unrestricted.
Have Fun ; )
David Dewhurst
CenDiv Milwaukee Region
Spec Miata #14
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