Parts Needed To Convert Tandem and Triple 7K Axle Trailers From Electric to Hydraulic Drum Brakes

Question

Question:

Hi I have 2 trailers 1st trailer is a tandem with 2, 7000lb axels. Im looking at switching it to hydraulic drum brakes what kit would I need? Bumper pull 2nd trailer is a tri axel with 3, 7000lb axels. Gooseneck. Same situation as above. Hoping this would give me more stopping power.

asked by: Reece H

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Expert Reply:

I'm assuming you are wanting to switch from electric drum brakes to the hydraulic drum brakes. Here is a list for each trailer.

1st Trailer
Hydraulic Trailer Brake Kit # AKUBRK-7 Qty 2
Hydrapro Alpha G-1200 Electric Over Hydraulic Actuator # DH34FR
Hydrastar Hydraulic Brake Line Kit - Tandem Axle # HS496-252

2nd Trailer
Hydraulic Trailer Brake Kit # AKUBRK-7 Qty 3
Hydrapro Alpha G-1200 Electric Over Hydraulic Actuator # DH34FR
Hydrastar Hydraulic Brake Line Kit - Triple Axle # HS496-253

You will need to ensure your trailer brake controller is compatible with electric over hydraulic brakes. If you have a factory built in controller we do have the Adapter Module # HBA-CAM which you will need if the factory controller is not compatible with hydraulic brakes.

expert reply by: Bud M

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Answer 1

Hey Richard, thanks for reaching out! The Dexter DX7.5 Drop-N-Go Brake Actuator #099-175-00 is a great option for a replacement actuator because it's a direct replacement for the common Model 60 actuators that were popular in the…

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Answer 2

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 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

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 5

There really isn't a particular maximum trailer weight that is used to determine when brakes need to be added to both axles of a tandem axle setup. While I do still recommend checking your local laws, I am also not aware of any general laws that…

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Answer 6

The biggest difference between the servo styles that you'll notice is between free backing plates and the others. The free-backing plates will allow your trailer to back up without having the brakes lock up. With surge brakes typically when you…

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Answer 7

The first thing I would do is check for power. Using a circuit tester like #PTW2993 check to see if 12V power is running to the #HS381-8066 when you use your manual override on the brake controller. If you have power here and no brakes it is likely…

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Answer 8

Yes, our Dexter leaf spring part #DX74XR is the same as the part number 072-079-00. This is a 7-leaf spring for an 8,000 lb trailer axle that is 24-7/8 inches.

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