Torin dual ram bottle jack that extends from a min. 5 1/4" to 14 1/2" high. I'll use it under an axle and since we have overslung axles (axle on top of springs), I need to use a block of wood under the U-bolts but am going to make a saddle (steel) to fit under the U-bolts.
I can see a possible situation where you pull over and the shoulder is sloped the wrong way and jacking the frame could be risky, or where you stop and don't want to or can't move forward or back. A jack under an axle allows you to remain in the spot that you stopped. I can also use it at home for a bearing repack or brake inspection. We could use our plastic leveling blocks to make a ramp if needed.
