I used to collect floor jacks, I have a Hein Werner WS, O Boy, HW93642 and an AC Hydraulic DK13HLQ. I also have a set of HW jack stands.
If you do some research, Snap-On was selling the same jack that HF was and sued them because their advertising basically said they were the same jack. This was a few years ago, but the tool truck jacks are going to be the same offshore models that are sold at HF, but with different paint/markings and a tool truck warranty.
If you need something now, go to HF. You could rebuild your old one, it probably is worth rebuilding and the parts exist for it. If you want US made, Milwaukee Hydraulic is pretty much the only new option. I got lucky, as my HW93642 was one of the last US made Hein Werners. I still had to make a four hour round trip to get it. It is a beastly jack, even in offshore form. Hein Werner bought Walker and stopped making their own jack designs and switched to the Walker design. That's a great, tough jack that can still be bought new. Decide now if you want a low profile, my AC is awesome when it works: You can jack cars from the subframe or rear axle and not run into the problem of having to lift where you would ideally put your jack stand. If you have an uneven driveway/work area a low profile jack might give you trouble. My driveway is like a rollercoaster and my AC jack is obviously meant for a euro style "workshop" or smooth garage floor.
I love floor jacks, the old ones are so cool. You should ask over on the
Garage Journal they have a "Trav" over there but for floor jacks! Not sure if he is still active, though.