Parts Needed to Flat Tow 2017 GMC Terrain with 2023 Jayco Precept 36A
Updated 09/26/2025 | Published 04/23/2025
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Question:
I am looking to set up a 2017 GMC Terrain FWD 4Cyl to Flat Tow behind my 2023 Jayco Precept 36A. Ive read good reviews on the Demco Package you offer with the Stay-IN-Play Braking System.
asked by: Tom F
Expert Reply:
Hey Tom! I would be happy to help you get the parts you need to flat tow your 2017 GMC Terrain. Demco does make some great products for a really nice setup. The best part about that is they also make our etrailer line of base plate kits and tow bars so you can get the same quality and save some money. You will need a base plate kit, tow bar, safety cables, wiring, and a supplemental brake system. I recommend the following:
-etrailer Classic Base Plate Kit - Fixed Arms # e98964
-etrailer SD Non-Binding Tow Bar # e34ZR (includes safety cables)
-Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles - 7-Way to 6-Way Coiled Adapter Cord # RM-15267
-Roadmaster Battery Charge Line Kit for Towed Vehicles # RM-156-25
-Roadmaster FuseMaster Fuse Bypass Switch for Towed Vehicles # RM-76517
-Demco Stay-IN-Play Duo Flat Tow Brake System for RVs w/ Hydraulic Brakes # SM99251
The only other thing you may need is a high-low adapter to keep you level. I went ahead and attached a help article further down on this page which explains how to measure and choose the right adapter for your setup. If you have any other questions don't hesitate to reply in the comments below.
Product Page this Question was Asked From
Demco Stay-IN-Play Duo Flat Tow Brake System for RVs w/ Hydraulic Brakes - Proportional
- Flat Tow Brake System
- Brake Systems
- Proportional System
- One-Time Setup
- Vehicle Battery
- Fixed System
- Power Assist Brake Compatible
- Hydraulic Brakes
- Indicator Lights
- Demco
more information >
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Instructions
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on Flat Tow Brake System
Robin H.
9/26/2025
Hey Tom, did you have a chance to set up your GMC Terrain for flat towing with the Demco package and the other parts I recommended? I'm curious to know how it all worked out for you, as it could help others looking to do the same setup.