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SMI Stay-IN-Play DUO Braking System Installation - 2017 GMC Sierra 1500

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How to Install the SMI Stay-IN-Play DUO Braking System on a 2017 GMC Sierra 1500


Today on our 2017 GMC Sierra 1500, you're gonna be taking at look at, I'm gonna show you how I install the SMI Stay-IN-Play DUO Supplemental Braking System, part number SM99251. Here we have our G-force controller. This is gonna allow us to turn our system on and off. It's also gonna allow us to adjust the sensitivity of our braking pressure. When mounting this, it can be mounted on the driver or… see more >     


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