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Today on our 2018 Lincoln MKX, we're going to be installing SMI's Stay-IN-Play DUO Supplemental Braking System, part number SM99251. And in conjunction with that, we're going to be installing Roadmaster's Brake-Lite Relay Kit, part number RM-88400.This braking system is going to allow you to pull your vehicle behind your RV and proportionately transfer those brake signals to your vehicle, making… see more >
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