@pawwright Are you trying to lift from the frame? My 80 OEM bottle jack still works (but barely) to get my 315's off the ground on a flat surface when used under the axles. Hmmm, maybe that's your problem on the front of the 100 - no solid axle?
Yeah - at least in the front - I remembered to try it on the rear with the bottle jack and all was good when I did it way back.... then yesterday I needed to lift the driver side front and realized I had to use the frame rail.... but will probably go the route suggested by @GLTHFJ60
Do you want a floor/bottle jack or a high-lift style jack?
You could carry a chunk of 6x6 post around in your truck and use the factory bottle jack. However, why do you need about 24" of lift from something you carry around to change tires on the street? I don't understand.
It's probably not 24" overall, most likely 22" or so in the front with the suspension fully dropped. I guess I could ratchet the front to limit droop..... sounds like a plan to just use a big chunk of wood. Thanks.