There aren't any universal lift kits. There are too many differences between different vehicles -- different geometries, coil springs vs leaf springs, spring sizes, spring stiffness, shock mount locations, solid vs independent suspension, etc., etc. etc.
Yes, some components can be swapped between different kits, but you won't see a kit made for a TJ that will claim to work on a ZJ because of the different sizes of the vehicles (though you can swap the front springs, but a 4" lift on a TJ may correspond only to a 3" lift on the ZJ -- I'm just pulling these numbers out of nowhere, but it's just to illustrate a point). You definitely won't see an XJ kit that's compatible with the ZJ or TJ since the XJ has rear leaf springs and the ZJ and TJ have coil springs.
I can only imagine the differences in lifts between Jeeps and non-Jeeps, too.
For a wrangler, I've seen lift kits of 8" but the most I've seen for a Liberty was 2.5". I think it took them a few years to actually get this to work on a Liberty b/c of the IFS (to compare, they already have 4" kits out for the new Wrangler) Independent suspensions are much more complex than solid axles and are usually much more limited in the amount they can be lifted.
I havent seen a lift kit for a fully independent suspension.
The bottom line -- don't expect a lift for the Patriot any time soon... That being said, I hope I'm wrong
