What Free-Backing Hydraulic Brake Assemblies do You Recommend for My 3,500 Pound Axle?

Question

Question:

Can I back up with these without having to lock out the actuator? Thanks.

asked by: Don H

1

Helpful Expert Reply:

While we do carry the assemblies you need that will not lock when backing up, the Hydraulic Trailer Brake Kit - Uni-Servo - 10" - Left and Right Hand Assemblies - 3,500 # AKUBRK-35 will lock up.

For the free-backing version that does not lock up, those are the # AKFBBRK-35. I went ahead and attached a demonstration video that highlights the features of these assemblies.

expert reply by: Bob C

1

Answer 1

Single serve refers to the wheel cylinder in a hydraulic drum brake assembly. It is an entirely separate component from the free backing option. A single serve, or uni-servo, wheel cylinder uses a single plunger to push the brake shoes against the…

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Answer 2

Thanks for the pictures. While I do have a replacement for your Titan Aero 6000 actuator I am not 100% positive it will have the same mounting holes. I have linked a diagram below that will give you the measurements to compare to your actuator. I…

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Answer 3

Hi Gary; with that 3-bolt pattern you need the #T63FR instead of the #DX83FR. This matches your DICO Aero 6000 measurements which can bee seen in the diagram below. It doesn't show your 2.70" measurement but if you use the good old…

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Answer 4

We can certainly help you replace your Atwood Actuator. The Dexter #T43397007K and #T63FR actuators you mentioned are going to be similar in that they are made for trailers with drum brakes and they both will bolt on to a 3" tongue. As far as…

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Answer 5

Traditionally, trailer manufacturers did not use electric brakes on boat trailers because the brake magnet wiring and trailer wiring did not always have the best insulation or water protection. These days, more and more manufacturers are using…

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Answer 6

In order to find out what you need for a replacement actuator you will want to start by finding out what kind of brakes you have. A different brake actuator is needed if you have drum brakes or disc brakes. You will also want to choose a replacement…

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Answer 7

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 8

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 9

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 10

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 11

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 12

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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What Free-Backing Hydraulic Brake Assemblies do You Recommend for My 3,500 Pound Axle?

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