An impact wrench would probably do the trick. Can you remove the bracket that holds the pump to the engine, and hand-carry the whole shebang (shebang, oh, baby, when she moves, she moves **ack** ) into any garage and ask them to use their impact wrench to remove the nut? FWIW, I recommend carrying the pump in one hand and a six-pack of universal lubricant in the other. <img src="/forums/images/graemlins/drunk.gif" alt="" />

Randii (with apologies to Ricky Martin)

Randy Burleson
4x4Wire Managing Editor Emeritus
Mongrel Isuzu Amigo