Long story, short, it's time for a new jack.
While I'd love to buy an American-made Hein-Werner, that's just not in the cards. Their parent company imports a Chinese-built line called Omega.
My primary concern in Chinese jacks is rebuild-ability. The Omega line has complete rebuild kits available and I consider that a big plus.
See it here:
http://www.shinnfuamerica.com/ProductDetails/Omega_Lift_Equipment/Service_Jacks/21025/169
It's available for around $130 locally, and I consider that a fair price for a rebuildable 2.5 ton jack.
Do any of you have experience with this brand?