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As Coug said, those Trucklites are plug and play. They are designed for the military HMMWV and used on the later model HMMWVs. One of the best bang-for-buck upgrades I made on my 1165.b
Get yourself a set of Trucklite 07496 lights and don't look back. The upfront cost is a little higher but these are the bets headlights (mil-spec too).
https://www.macmotors.com/Product/TRK/HEAD-LAMP-LED-7%22RND-9-33V-HEATED/07496