Description
We have always wondered why so much attention has been paid to the warpage of the valve body on the 68RFE and none to the pump! Transmission builders across the country (those that have access to surface plates) have known for years that the 68RFE pump is prone to warpage. Just like the valve body, the pump too doesn’t have a gasket and relies on perfectly flat mating surfaces to seal properly. When the pump is new these surfaces seal pretty good but after hundreds or thousands of heat cycles warpage becomes a huge issue. We have seen used pump bodies with up to .020” warpage and nearly every pump we inspect has a moderate amount.
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