How about burning in some gussets? I think that they need them.Preparing to do rear axle and I'm getting tired of stacking 2x8s under my jack stands so building some high lift jack stands. Found an old timer who was selling a "HD" engine picker but no top. I scooped it up for $50 and spent another $270 on other square stock. I still need to add triangle support members made from recycled bed frames and build 4 more tops. Lowest height is 20" while the highest is 36" w/o a third extension piece. Thanks to Dirt Lifestyle Nate for the idea.
Tops - decided on 3 inch across although I think it might be a little wide (my frame rails are 2 inches wide, but I need to also use them on a Tacoma and a FZJ80).
Ground off the mill scale and applied some Steel-It
Here is the proto type with the extension pinned in: