We have two that we use often in conjunction with the two post and four post lifts. If using with the two post say for a motor mount change, the second one is at the back to keep the suspended vehicle from tipping. Have all sorts of brackets that bolt to the top of the air jack for anything heavy that needs lifted up in place from the underside (rear end, trans, etc). On the four post we use the top of the jack to lift one end for brake/tire/suspension work. Safe and fast.


Evan