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This is what I have found works best...... I have my Chevy on it here, but it also works with the Liberty.
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I just recently picked up an AC Delco 1 1/2 ton mostly aluminum "racing" jack for service calls. Little fellow is easy to carry, quick jacking, and will pick up cars and most pickups easily. Might be all one would need around a home shop and priced about $125
ACDelco 34745 - Aluminum Racing Jack | O'Reilly Auto Parts
Haven't beat the hell out of it on an everyday basis though.