Did i mess up? 4.10 gears

[Sephiroth]

I ordered the D30KJ-410LIB-OE spicer 4.10 gears for the front of my liberty which has the OEM differential, but I've seen a different set of 4.10 gears at JBA's website with no part number listed as 2002-2005 Jeep Liberty KJ aluminum housing what's the difference between this 2? will the spicer set fit my jeep? or did I order the wrong item? I emailed JBA but haven't heard back from them.