Which Hydrastar Disc Brake Kit Do I Need for My Tandem 7,000 lb Lippert Axles?

Question

Question:

I have a 15k lb camper duel axel with the 12x2 drum brakes. I am looking at converting to disc. Can you give me suggestions for your conversion kits? I have a picture of the axel tag that I can email also

asked by: James E

0

Expert Reply:

Hello James,

Thank you for sending over the picture of your axle tag!

Based on the information on your axle tag, your trailer has tandem 7,000 lb Lippert axles with an 8 on 6-1/2 bolt pattern. Since you're looking to switch to hydraulic disc brakes, I recommend going with one of the Hydrastar Disc Brake Kits with Actuator. They come with the hub and rotor assemblies, calipers, actuator, brake lines, bearings, races, seals, and the installation hardware, so you'll have everything you need for the installation.

The correct kit depends on the size of your wheel studs. If your trailer has 1/2" wheel studs, you'll want # HSE7K-T1. If it has 9/16" wheel studs, then you'll need # HYD87VR.

Hydraulic disc brakes are a great upgrade for a heavier camper like yours. They provide stronger, more consistent braking than electric drum brakes, and you'll especially notice the difference when coming down long grades or towing in hilly areas.

What brake controller are you using? Since you're switching from electric drum brakes to an electric-over-hydraulic system, I want to make sure your brake controller has an electric-over-hydraulic setting so it will work with the Hydrastar actuator.

Getting things geared up for the next great adventure, where are you headed to next?

expert reply by: Kate F

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Answer 1

Hey David, the Redarc Tow-Pro Link Bluetooth Brake Controller #RED57AR that you referenced will fit any vehicle that has a 7-way installed on it including your 2017 Ram 3500 that has a factory brake controller. This will bypass that circuit on your…

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Answer 2

Hi Jeff, welcome back and sorry to hear that gave you so much trouble. The Redarc Tow-Pro Link Bluetooth Brake Controller #RED57AR will work on your Silverado. This plugs in-line at the back of your 7-way at the rear of the truck. You can either…

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Answer 3

Hey Butch, thanks for the picture of your axle tag. The Hydrastar Disc Brake Kit w/ Actuator for Tandem Axle Trailers item #HSE7K-T1 is exactly what you need. These rotors will fit your 7,000 lbs Lippert axles perfectly. They have 1/2" lug studs…

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Answer 4

The Redarc Tow-Pro Liberty #RED24FR is the way to go over the Elite #RED44FR as you get the nicer functions of the Elite at a lower price. The Elite has the ability to be the more preferred proportional style of controller as well as a time-delayed…

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Answer 5

The brake controller port for your 2019 Ram 3500 is a bit of an odd location relative to where the port is on other trucks; the port is underneath the control knobs like in the accompanying photo. You will be able to find the plug behind that panel,…

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Answer 6

We can help bypass the OEM controller of your 2015 GMC Sierra 3500 but to answer your first question you do not need to take truck to dealer to have any check engine lights addressed. I would recommend the Prodigy P3 part #90195 for you because this…

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Answer 7

I would be happy to! The best option for a plug in brake controller for your 2016 Ram 2500 is going to be the Redarc Tow-Pro Liberty Brake Controller item #RED24FR. This is a proportional brake controller that activates your trailer's brakes when…

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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

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 10

Yes, it will work. You'll just need to cut the Lance 6-pin connector out and rewire it into the etrailer Trailer Wiring 7-Way Upgrade Kit w/ Junction Box and RV Style Connector item #e99011. Here are the individual functions of that Lance 6-pin:…

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Answer 11

The OEM prep package consists of 4 "pucks" in the bed of the truck that will allow you to drop in puck style hitches for easy installation and removal, that gives you a completely clear bed when not in use. The B&W Companion OEM 5th…

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Answer 12

Since the pin weight of your camper is 2.1k, I recommend going with the LoadLifter 5000 opposed to the 7500. While technically there is not reason you couldn't use the 7500 kit, it really is not necessary for a camper like yours. Generally the…

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Which Hydrastar Disc Brake Kit Do I Need for My Tandem 7,000 lb Lippert Axles?

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