Posted by casebro on Thursday, October 02, 2003 at 11:42AM :
In Reply to: Idaho Jackstands posted by Brett in AK on Thursday, October 02, 2003 at 1:59AM :
Since they are not perfectly flat, all the weight can be concentrated on one spot, which then disintegrates under the weight. And the steel axle already concentrates the load in one spot. Wood blocks would be better, masonry is a no-no.
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