Just to clarify what XOC said...

Yes, if you bought longer Bilsteins to go with the national packs, combining these two is not the way to go. The ideal install here is either the national spring pack with my top mount designs, or the OEM spring pack with the side mount design... both with the standard length Bilsteins
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"Goddammit, I don't want FOP, I want Dapper Dan. I'm a Dapper Dan man!