The problem with using wood cribbing to hold up something like a car is
when you make the crib wide enough to provide good stability you wind
up with very little room to work. A better idea might be to lay down a
very short, perhaps 4" to 12", platform of very stable wide material
(say 2x12 s) and use your steel stands on top of this. For the width
of it's base, steel stands provide more side-to-side stability than
loose wood, that's what they're designed for.

Dennis in nca