[Old Truck Man]

I would bet any new jacks you find will be made in some other country. you find the same brand stuff at wal mart- lowes -home depot & harbor frieght ect. heck two two ton jacks used side by side = 4 tons. There is a guy around here who repairs damaged foundations and levels floors ect. he buys dozens of cheap hyd jacks. He will dig a trench right next to a foundation with a backhoe. set the jacks up and level everything and fill the trench up with concrete leaving the cheap jacks to be entoombed. the problem ive found with cheap jacks is they soon start leaking or the pump plunger gets worn if you use them a lot. The screw type jacks that are original equipt for our trucks might work for you. they are tough and you don't have any of that pesky leaking hyd fluid. I weld a large nut to them so I can fit a socket. that way a rachet or air impact can be used in place of the crank handle.