Quote:
Originally Posted by sdan27
I believe he is saying that in the early model powerstrokes, the anti-drainback valve was in the hpop itself, whereas in the later model, as a '99 would be, the drainback valve was in the front cover.
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Sort of. The antidrainback was moved from the pump into the front cover in mid-96 (I think). Anti-drainback was in the pump up to engine serial number 201680. Cheers!
