Here is whati found..

http://parts.mopar.com/jeep/liberty-parts.html

Go to the front suspension section
->font suspension
-->Item #23

Is this the "top plate" ill need for replacement of the daystar one?

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2010 Jeep Liberty 4x4 Sport
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1.5" OME springs
SkyJacker shocks
General Grabber AT2 tires 245/75/R16
6x E3.48 Dimond fire spark plugs

Not sure nothing came up??

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MUDD'S MOTORSPORT'S We do IFS lift installs ,
03 OVERLAND EDITION /Kilby-Skidrow-Mopar-4XGuard skids/ 2.5 inch TOTAL CONTROL JBA coilovers -JBA Arms/MOABS-31 FALKEN WILDPEAK AT3W / 4.10's etc, 04 Kilimanjaro Edition loaded, plus 05 KJ limited

I would think that since the daystar plate compresses the shock the daystar te should make the lift higher. Of course the reality is that the shock uses valving to slow down compression and rebound to prevent a vehicle from bouncing like a ball and does not lift the vehicle. Springs lift a vehicle. If the daystar plate compresses the shock more it should allow the shock to extend further than a stock plate. My concern would be a shock bottoming out under compression with the daystar plate. When I installed my daystar plate on my shocks I thought the only difference was that it extented the attachment point of the upper shaft to make up for the difference in distance taken up by the spacer. This would simulate a longer shock with a longer spring. Seemed to me very similar in concept to putting an extension on the upper shock mount. It maintains original shock travel, just raises vehicle in the process. By changing the initial lca angle, forces are magnified and it would seem to make sense that when a lift is done spring rates should naturally change to account for changes in forces. This is the only reason I can see why springs would sag when spacer lifts are used. The same should go for top plates and clevis lifts but with less severity since they are generally small amounts of lift.
If anyone could clarify or correct my hypothesis I would appreciate it.
Thank you and sorry for the long post.

I guess an easy way to see or understand this is to disconnect your rear shock and see if your truck is lower. I don't imagine it would be. If the thickness of the daystar plate is thinner than the oem plate then that would account for a lower height. If not I can't see how the plate would change the ride height. Should only change the "bottom out" points of the shock under max compression and max extension. This is why longer rear shocks and bump stops are recommended with the spacer lifts. (And other lifts too for that matter)