Best Flat Tow Set Up For 2015 GMC Terrain
Updated 08/29/2022 | Published 08/24/2022
Products Featured in This Question
Question:
I am setting up to flat tow my 2015 Terrain with a 2021 Class C. I’m about to purchase the Roadmaster baseplate 523163-1 and the Roadmaster RM-520 tow bar. I’m confused about the connection between the two. Do I need to purchase “clevises” or are they included with one or the other components? Also I have see the clevises listed as either 1/2 inch or 3/4 inch. Can you tell me which I would need? If you have better product suggestions please advice. Thanks!
asked by: Marshall
Expert Reply:
Good question, and for your 2015 GMC Terrain, the Roadmaster EZ base plates # 523163-1 require crossbar attachment # 910021-00 instead of clevises, so it is an extra part and a bit more difficult to connect than base plates that have arms which allow a direct connection to the tow bar. Instead of that, the best option is to use Blue Ox base plates and a tow bar which connects directly to it; I'll go ahead and list out below exactly what you'll need for your 2015 GMC Terrain
- Base Plate Kit: Blue Ox Base Plate Kit # BX1689
- Tow Bar: etrailer SD Non-Binding Tow Bar for Blue Ox Base Plates # e47ZR
- Wiring Kit: Roadmaster 4-Diode Wiring Kit # RM-152-1676-7
- 4-Cylinder Engine Fuse Bypass # RM-76517
OR
- V6 Engine Fuse Bypass # RM76511
- Supplemental Braking System: Demco SBS Stay-IN-Play DUO Supplemental Braking System # SM99251
The Blue Ox base plates have arms that are removable so they'll be hidden when you aren't flat towing, and the etrailer SD tow bar connects right to it without any other parts needed. It has a 6,000 lb capacity which is well more than what your Terrain weighs, and comes with integrated safety cables and an adjustable tilting head so a high-low adapter won't be needed.
As for the rest, I really like the Roadmaster diode wiring kit because it is designed to prevent any type of electrical feedback, keeping your Terrain's electrical system safe. And for the braking system, the Stay-IN-Play DUO is by far the best option, and the reason for that is it gives you braking proportional to that of your motorhome. So when you hit the brakes on your motorhome, your Terrain is going to get the same amount of braking power. This results in much smoother braking than most systems which send out a pre-set amount of braking power, giving you a more comfortable and easier-to-control ride when flat towing.
Product Page this Question was Asked From
Replacement Quick Disconnect Crossbar Assembly for Roadmaster Tow Bars
- Accessories and Parts
- Tow Bar
- Quick Disconnects
- Car Side and Tow Bar Side
- Roadmaster
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Trailer Wiring
- Search Results: rm794
- Search Results: 7 pin tester
- Search Results: 6 pin socket
- Search Results: 4 wire wiring
- Article: Flat Towing Package for 2014-2015 GMC Terrain
- Q&A: Are the Roadmaster Hy-Power Diodes Water Tight
- Shop: Vehicle Tow Bar Wiring
- Video: Roadmaster Hy-Power Diodes (Qty 3): The Breakdown
- Shop: Roadmaster Hy-Power Diodes (Qty 3)
- Shop: TowSmart 6-Pole, Round Pin, Trailer Wiring Socket - Vehicle End
- Shop: TowSmart 14 Gauge, 4 Conductor Wire - 25'
- Video: Review of TowSmart Trailer Wiring - ProClass Trailer End 7 Blade Connector Wire Tester - TS86RR
- Video: Let’s Check Out the Roadmaster Hy-Power Diode
- Video: Review of Pollak Trailer Wiring - 6 Way Vehicle End Connector - PK12720
- Video: Complete Breakdown of the Pollak 6-Pole, Round Pin, Trailer Wiring Socket
- Video: Curt 7-Way to RV Socket LED Circuit Tester Review
- Video: Blue Ox Wiring - Trailer Connectors - BX294-0902 Review
- Shop: Roadmaster Hy-Power Diodes (Qty 4)
- Shop: Roadmaster Hy-Power Diode - (Qty 1)
- Shop: Pollak 7-Way to RV Socket LED Circuit Tester - Vehicle End
- Shop: Blue Ox 6-Pole, Round Pin, Trailer Wiring Socket - Vehicle End
- Search Results: trailer hitch
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Trailer Hitch
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Article: Trailer Wiring Diagrams
- Search Results: trailer wiring
- Q&A: Lug Nut Torque Chart for Trailer Wheels
on Accessories and Parts
