What's The Difference Between The Roadmaster Baseplate Kit # RM27MR And # RM37VR

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Question:

Roadmaster base plate for 2021 GMC Canyon Denali. You have two models: RM27MR and RM37VR. What’s the difference?

asked by: Bob

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Expert Reply:

The difference between the Roadmaster Baseplate Kit # RM37VR and # RM27MR is that the # RM37VR will not fit AT4 models and the # RM27MR is designed to fit AT4 models. You'll just need to choose the corresponding option for your specific model. If you haven't picked out the rest of your flat towing components then I have the following recommendations:

Tow Bar: etrailer SD Non-Binding Tow Bar for Roadmaster Direct-Connect Base Plates # e74ZR. This tow bar comes with safety cables bracketed to the arms so that you won't have to purchase them separately or worry about them dragging.

Tow Bar Wiring Kit: Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267. This diode kit will splice into the factory wiring to display your motorhome's traffic signals through the tail lights of your Canyon.

The battery will need to be disconnected in order to flat tow so I recommend also picking up the Roadmaster Battery Disconnect # RM-766 to make this as easy as pressing a button.

Braking System: If your motorhome has hydraulic brakes then I recommend the Demco SBS Stay-IN-Play DUO Supplemental Braking System # SM99251, and for air brakes the Demco Air Force One Supplemental Braking System for Motor Homes with Air Brakes # SM99243. Both of these systems have an indicator light to display when the brakes are being applied that will need to tap into the brake light switch wire on your Canyon. Since yours isn't useable you'll need the Roadmaster Stop Light Switch Kit # RM-751472 in order to get the signal.

expert reply by: Kevin C

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Answer 1

It really depends on the vehicle you are flat towing using a tow bar like the Roadmaster Nighthawk #RM-676 that you referenced as to whether or not the odometer will track the mileage. Late/current model vehicles typically have an electronic dash…

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Answer 2

Yes, a 2019 Chevrolet Colorado 4x4 is flat-towable with all four wheels down. It looks like all models come with the 2-speed transfer case which is needed to be flat-towed so you should not have any issues. I have attached a list of parts for you…

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Answer 3

I've never heard of an actual third brake light connector on a camper shell to plug in on a truck and we don't carry any parts to do that. The light generally needs to be hardwired into the truck's brake light circuit. The issue with this…

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Answer 4

When it comes to choosing between the Blue Ox Patriot #BLU37TR and the Brake Buddy Select 3 #HM39524, these systems are extremely similar in their setup and functionality. Both of these systems provide proportional braking in a compact and easy to…

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Answer 5

The manual lockout on your Atwood 85778 surge brake coupler is there so that you can back up the trailer without the brakes locking up on you. Yes you can safely tow your trailer with the broken manual lockout, you just have to make sure you…

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Answer 6

Both the Roadmaster and Blue Ox tow bars are great options. But if it was my decision to make I would go with the Blue Ox Avail part #BX7420 as we have found that the Blue Ox tow bars are a little easier to connect and disconnect from. Also this tow…

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Answer 7

The best option we offer for your dump trailer is the Erickson Mesh Tarp and Truck Bed Cover part #EM57059 which measures 12' wide x 16' long. It's not the exact dimensions you wanted but it will still cover most of the area you need it…

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Answer 8

From what I could find it looks like your 122R (red) and 122Y (amber) lights measure 3.75" x 1.70" x .81". We don't have any replacement lense directly for the GLO-BRITE lights but we do have some similar lights that you could use…

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Answer 9

I did some checking and the hub/drum we offer that will work for you is the part #8-430-5UC3. This uses the same bearings as the 8-415 and will be an exact fit aside from the fact this is a non-ABS setup and the 8-415 came in an ABS setup and non-ABS…

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Answer 10

Since you have a wheelbase/axle spacing of 38 inches the correct hanger kit for slipper springs would be the part #HAP-105-205-01. And then for a 7k trailer axle the u-bolt kit you'd want would be the part #APUBR-8. I attached the diagram to use…

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Answer 11

The first thing you'll need to flat tow your 2015 Chevy Malibu LS is a base plate kit like the Roadmaster part #RM-523178-5 that is a confirmed fit. In addition to the base plates, you will also need a compatible tow bar, safety cables, lighting,…

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Answer 12

Below is the general process for bleeding an electric over hydraulic brake actuator like #K71-650. Fill reservoir with NEW brake fluid. Never re-use brake fluid that has been salvaged or removed from another system. Remove the key from the breakaway…

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What's The Difference Between The Roadmaster Baseplate Kit # RM27MR And # RM37VR

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