OEM Parts or Jobber. Which Are Better???

[andrewcanada]

I've got two old Fisher 7.5's and need a few "tune-up" parts.. Should I buy Fisher packings, pins, etc., or are the S.A.M. parts from Auto Zone good enough?
My experiences with car parts is you get what you pay for, but why spend the extra money if the jobber parts are re-packaged Fisher... :zoom

[BWhite]

I cant tell and I dont think anyone has completed any laboratory material testing on the available parts . So I buy Fisher .