Any tips on replacing the shaft seal on Saginaw PS pump?

Is it possible to get it out without taking the pump apart?

Taking the pulley off is no problem i have all the tools and did it a few times already.

I'm not claiming to be an expert, but in all pump rebuilds I've done, the shaft has too close a tolerance to get any leverage on the seal. I wouldn't bother short cutting it anyway. Just take care of everything at once. A Saginaw pump is pretty simple and easy to do. Just pay attention to the little pieces and keep dirt out of it.

there are some you tube videos on rebuilding it. pretty simple really.

The pump is a BBB rebuild unit from rockauto and out of the box leaks from shaft seal😬 Rockauto gave me money back without return but because the pump is working nice and quiet only has a leak,i thought to replace the seal and be done.

SOOOOOPER EEEEEEZY to take it apart and fix that. By the time you get the pulley off and take it off the motor and disconnect the lines, which you'd have to do anyway, you're already about ¾ of the way there, anyhow.

Chances are the shaft has a groove which is why the seal isn't sealing. When you pull the shaft chuck it on a drill and polish it with fine emery cloth. If you are resealing the pump pay attention to the o-ring on the fitting you remove at the lower rear of the pump. There are 2 grooves and 1 o-ring. Put the o-ring back in the wrong groove and you won't have PS.

There are two big o rings in the housing?

He's talking about the pressure relief valve; the thing that looks like a big "fitting", that the pressure line screws into. It's ALOT more than just a "fitting". The mistake he's referring to, will prevent the pump from ever delivering any significant pressure, because it creates a giant internal leak that returns all the pumped fluid back to the reservoir.