Parts Needed To Flat Tow a 2020 GMC 2500HD Behind a Class A RV Motorhome
Question:
can you advise on what all I would need to flat tow my 2020 GMC 2500HD behind my class A coach? I would need everything. thanks
asked by: Jeff S
Expert Reply:
First you will need the Roadmaster Direct-Connect Base Plate Kit # RM86FR for the front of your 2020 GMC Sierra 2500HD. This will allow you to connect your Sierra to your class A coach using the Roadmaster BlackHawk 2 All Terrain, Non-Binding Tow Bar # RM-422. You may need a High-Low adapter like the 4" # RM-048-4 to keep the tow bars within 3" of level from vehicle to vehicle. The base plate has a height of 20-1/4" when installed on a truck with 275/65R20.
The RoadMaster BlackHawk 2 All Terrain Combo Towing Kit # RM-9243-3 will provide you with a cover, storage bag, lube, safety cables, and wiring needed to connect the tail lights on your Sierra to operate off your motorhome. You will also need a Charge Line Kit # RM-156-25 to maintain the power lost on the battery from the supplemental braking system. If you have a gas engine you will need the Battery Disconnect # RM-766. For a diesel engine you will need the Battery Disconnect # RM93MR for each battery. This will make it easier than having to disconnect and reconnect your battery cables when you are towing.
If your Class A motorhome has air brakes you will want the Demco Air Force One Supplemental Braking System # DM26VR. Otherwise the Demco Stay-IN-Play DUO Supplemental Braking System # DM86VR is the system you will want. The Demco systems are in my opinion the best ones for flat towing. The main units mount under your hood so you will not lose space in your cab.
Products Referenced in This Question
Demco Air Force One Flat Tow Brake System for RVs w/ Air Brakes - Wireless Monitoring - Proportional
- Flat Tow Brake System
- Brake Systems
- Proportional System
- One Time Set-Up
- Fixed System
- Power Assist Brake Compatible
- Air Brakes
- Demco
more information >
Demco Stay-IN-Play Duo Braking System for RVs w/ Hydraulic Brakes - Wireless Monitor - Proportional
- Flat Tow Brake System
- Brake Systems
- Proportional System
- One Time Set-Up
- Fixed System
- Power Assist Brake Compatible
- Hydraulic Brakes
- Demco
more information >
Roadmaster High-Low Adapter for Tow Bars - 2" Hitches - 4" Rise/Drop - 10K GTW, 400 lbs TW
- Accessories and Parts
- Tow Bar
- Hitch Adapters
- High-Low Adapter
- Fits 2 Inch Hitch
- 4 Inch Rise/Drop
- Roadmaster
more information >
Roadmaster Battery Charge Line Kit for Towed Vehicles
- Accessories and Parts
- Flat Tow Wiring Harness
- Battery Charge Line Kit
- Roadmaster
more information >
Roadmaster BlackHawk 2 All-Terrain Non-Binding Tow Bar - RV Mount - 2" Hitch - 10,000 lbs
- Tow Bar
- Hitch Mount Style
- Telescoping
- Steel
- 10000 lbs
- Fits Roadmaster Base Plates - Direct Connect
- Stores on RV
- Non-Binding
- Roadmaster
more information >
Roadmaster Battery Disconnect for Towed Vehicle w/ Flat Tow Brake System - Gas Only
- Accessories and Parts
- Flat Tow Wiring Harness
- Battery Disconnect
- Roadmaster
more information >
Roadmaster Accessory Kit for BlackHawk 2 - Tail Light Wiring - 7-Way to 6-Way Cable - Safety Cables
- Accessories and Parts
- Tow Bar
- Accessories Kit
- Blackhawk 2 All Terrain
- Roadmaster
more information >
Roadmaster Battery Disconnect for Towed Vehicle w/ Flat Tow Brake System - Diesel
- Accessories and Parts
- Flat Tow Wiring Harness
- Battery Disconnect
- Roadmaster
more information >
Product Page this Question was Asked From
Roadmaster Direct-Connect Base Plate Kit - Removable Arms
- Tow Bar Base Plate
- Removable Draw Bars
- Hitch Pin Attachment
- Roadmaster
more information >
Featured Help Information
Instructions
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