1957/58 upper control arms

[Contibob]

Hello to all, I was wondering if the upper control arms are different for 57 and 58. I know they went to a different bushing type (rubber 57, grease type 58) Any help would be appreciated.

[Frankenstein57]

Geometry is the same

[Contibob]

Will the 58 screw in bushings work on the 57 control arm? I am assuming the mounting shaft has to be 58?

[gasman826]

C3AZ-3082-A for RH
C3AZ-3083-A for LH
57-59 model years...with a C3 prefix, probably same through '64 but I did not check that far.