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Today on our 2016 Cadillac SRX we will be installing the SMI Air force One supplemental braking system for motorhomes with air brakes. This is part number sm99243. This braking system is a truly proportional system. You don't have to worry about having to set it up every time you want to tow your motorhome. Just install it once, make your two connections for the air hose and the breakaway switch… see more >
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