service reservoir O ring

The Federal and TRW pumps have a front pressure hose outlet. You don't have to pull the pulley to reseal the reservoir. Assuming the reservoir is not damaged, I usually just clean the old "O" ring and housing real good and then smear a light coat of RTV on both sealing surfaces and reassemble it. Let it cure good before you add P/S fluid. Don't use ATF. If the shaft seal is leaking or you want to rebuild the pump, just get a kit. I think NAPA has them and they weren't very much the last time I got one.