Correct Replacement for Atwood 159-80770 Braking Assemblies

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Question:

Thank you for all of the help with my questions - Regarding the Demco DM72VR, Im also buying the Titan reverse lockout T4748800 to make it an electric reverse lock out system and switching to a 5 way wiring instead of 4. Are the Demco 18787 and 18788 the appropriate drum brake assemblies? My current drum brakes are 10inch x 2 1/4inch wide Atwood Uni-Servo brakes, Atwood P/N MPD 159-80770 and MPD 159-80780. My current Atwoods are standard, meaning the original Atwood surge actuater had a mechanical lockout.

asked by: Robert B

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Expert Reply:

Yes, the Demco Hydraulic Drum Brake Assembly part # 18788 for left and part # 18787 for right will work well to replace the Atwood 159-80770 Braking Assemblies. They are both 10" x 2-1/4" with a 5 bolt flange so there will be no compatibility issues.

expert reply by: Conner L

0

Answer 1

We do not have any replacement parts for the Atwood 61101 brake actuator. I do have a direct replacement. The Demco Hydraulic Brake Actuator - Drum - Zinc - 2" Ball - 7,000 lbs, part #DM72VR, is a bolt-on brake actuator that mounts on 3"…

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Answer 2

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 3

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 4

The Demco Hydraulic Trailer Brake Actuator part #DM72VR should be a direct replacement for the Atwood 61101 Brake Actuator that you have now. This newest updated it rated at 7K instead of 6K. This is a bolt on option that mounts on 3" centers.…

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Answer 5

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 6

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 7

According to Blue Ox, it'll take an experienced installer about 4 to 5 hours to complete the installation of their #BX1128 Base Plate Kit on a 2016 Jeep Grand Cherokee. The install isn't what I'd call super-difficult, but the installation…

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Answer 8

Hi Paul, you’re definitely on the right track here, and I can help you narrow this down with confidence. With your tandem 3,500 lb Dexter axles and 33 inch spacing, both the Dexter EZ Flex part #K71-652-00 and the Lippert Road Armor part #LC53CK are…

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Answer 9

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

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Answer 10

The #84 spindle is just a common way to identify the spindle dimensions typically used for 3,500 lb axles. So instead of listing out the parts, people can just say they have #84 spindles and it's easier to know what fits it. The CE Smith Trailer…

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Answer 11

Even though I cannot comment specifically on the grease you used because I am not familiar with it, I can tell you the best grease for trailer bearings is a a grease with a rating of GC-LB, which just means it is made to withstand very high…

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Answer 12

The 5.30-12 tires, being wider, are going to make more contact with the road. This means that the noise, and heat build up will be higher than a 4.80-12 tire but the rolling resistance will actually be less because the tire is larger diameter. The…

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Correct Replacement for Atwood 159-80770 Braking Assemblies

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