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Recommendations for 2018 GMC Sierra 3500 5th Wheel Setup


You guys are a great resource and so I need to ask...Im considering upgrading my RAM to a 18 Sierra 3500. I dont think the dealer has the info I need so Im looking for any info you can provide. New truck has a tow package so my two questions are: Does the GMC brake controller work with the trailers hydraulic brake system? Will the Pull-Rite auto slide hitch mount into the standard bed of the GMC?


Expert Reply:

The GMC integrated brake controller on your 2018 GMC Sierra 3500 may or may not work with your EOH system. Previous model years have required an adapter like the HydraStar # HBA-CAM to function well together.

The Pull-Rite Auto slide hitch will work in a standard bed of the GMC truck. You don't need a sliding hitch with an 8 foot bed, but you would with the 6-1/2 foot bed. For either bed size, I recommend the custom bed rails # RP50066-58 for industry standard above bed rails. If you get the factory rail puck system, then you will need rail adapter # DM6194 for your Pull-rite if you have a short bed or # DM6206 for an 8 foot bed.

We don't carry the Pull-Rite, so if you don't already have it, let me make a suggestion. For a short bed truck, I recommend the Demco Hijacker autoslide in either the 18K # DM8550034 or the 21K # DM8550035. For an 8 foot bed, I recommend the B&W Companion OEM 5th Wheel Hitch for Chevy/GMC Towing Prep Package # BWRVK3700 or the Reese M5 # RP46FR if you use above-bed rails.

For a wiring harness I recommend using # 50-97-410 to add a second 7-way to the bed of your truck for convenient connection and a clean look. Let me know if you have further questions.

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