My '91 w/87,000 mi on the clock has sprung a leak from the weep hole on the bottom of the pump. Checked it while running and just getting warmed up, it was dripping very fast. Pulled it apart and now need to know - has anyone successfully rebuilt the pump? If so, how and where did you get the o-ring that will be needed to seal the pump shaft? Service manual says if it leaking from the weep hole, to replace the pump. New pump is $165 from Ron Ayers. I don't even want to ask the local dealer what his price is. TIA