My 88 F-250 Build and Pics
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made mark on the outside of pump ( like in the inspection cover area ) and just put it back in the same place ... cant be done with a new pump due to possible rotatoin of new pump ... clocking could be different ... only can be done on a pump that has already been timed to the engine .. or pull front cove and all and do it that way also ... either way .... its a chore