valhalla360 wrote:
You can use 20 ton jacks on all 4 corners to support a few hundred pounds but it's silly when they were engineered for multiple times the expected load in the first place.
Yes, most are going to be rated for at least a ton...simply because it's more complicated to design them for less.
The 12-ton bottle jack (not 20 ton) reference was only for when I'm lifting one rear axle (~4500lbs) to remove a tire/etc and if I'm going to be underneath the RV at all. And if I am, I also put some extra 3-ton jack stands just to be extra safe.
You have mentioned multiple times above "support a few hundred pounds"...I assume you are talking about just using a jack to do some stabilizing (not lifting). Sure, in that case using a jack that is rated for as little as 1-ton would be fine.
-Chris