They are advertised as having a 1 inch drop but they actually measure 1.25 inches. Polyurethane is a hard rubber compound. So when you reinstall the transfer case skid plate, it compresses a little, but not much. This worked for my 2" lifter in my 04 TJ. The screws that come with the kit (1/2"x13) are the wrong size mentioned by others here. They only fit older TJs. The newer TJ (03-06?) uses M12 x 1.25", I ended up using M13 x 1.25" x 70mm. And it worked again for my application. So 4 stars for spacers, -1 for hardware)
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