Converting a 2010 Forest River Salem Travel Trailer To Hydraulic Disc Brakes

Question

Question:

Hello, I am looking for a products recommendation for: Converting my tandem axle fifth wheel to a hydraulic disc brake system. Here are my specs: Year: 2010 Manufacture: Forest River Make: Salem LA Model: 336QBUD Weight: 11,000 lbs Tire size: ST225/75D15/D Studs: 6 on 5-1/2 Axles: 2 Axle ratings: 5200 lbs Brake controller: Tekonsha 90160 Primus IQ Electronic Brake Controller I am interested in a complete conversion, but having difficulty figuring out what I need from your site. I dont know if you offer a complete set or if I will have to piece it all together? Thanks

asked by: Jacob

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Expert Reply:

This will need to be pieced together to build you an entire kit.

First the Dexter Trailer Idler Hub Assembly # 8-213-5UC1 will replace your current brake and hub assemblies on your 2010 Forest River Salem 336QBUD. This will let you remove the brake rotors separately from the hub for service or replacement. I recommend a Bearing Buddy # BB2441SS to make greasing your bearings easily done without having to remove your hub.

I recommend the Kodiak Disc Brake Kit # K2R526S for your Salem. This brake kit uses stainless steel construction to hold up better and reduce rust and corrosion. The kit includes 2 rotors, 2 calipers, 2 caliper brackets and 4 caliper bolts.

The HydraStar Electric-Hydraulic Actuator w/ Line Kit for Disc Brakes # CAR-HBA16-2 is best mounted inside the front storage compartment to reduce the elements from damaging the unit. This kit will include the brake lines necessary to run to the brake calipers as long as the point you mount the brake actuator is within 15' of the front axle on your Salem. If you need a longer line let me know what length you have and I can suggest a different kit.

You will need to replace your Primus IQ # TK90160 as it is not compatible with electric over hydraulic brakes. I suggest the Tekonsha Prodigy P3 Trailer Brake Controller # 90195 as it will use the same plug as your Primus and will only require you to swap out the mount. This Prodigy P3 controller is proportional like the Primus but has the ability to diagnose issues, work with electric over hydraulic brakes and is customizable.

expert reply by: Bud M

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Answer 1

You are going to need 26" long leaf springs. We have our Standard #e94SR or the Rust Resistant #e88SR springs you can select from. Both of these are the correct 26" length you need and have a weight capacity of 3,000lbs per spring. Be sure…

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Answer 2

I have attached for you below some common torque values needed for a trailer suspension system but a lot of these will vary by bolt size and other factors. U-Bolts: Varies by Size - 1/2" bolts: 45 ft/lbs - 70 ft/lbs, 9/16" bolts: 65 ft/lbs…

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Answer 3

I contacted MORryde and this does happen from time to time as the weight of the trailer can spread out the axles due to downward pressure on the springs/suspension. Odds are the 35" wheel base #MR27ZR will be the correct one for you, but they…

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Answer 4

To correctly measure a leaf spring, you'll want to jack the trailer up on jack stands so the axle is hanging freely, then measure directly across from the center of one spring eye to the other, as shown in the provided diagram. The height of the…

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Answer 5

Thank you for providing the specs for the suspension components that you already have. Correct hanger spacing really depends on the components being used such as springs, hangers and equalizers. Most of the hanger spacing dimensions that we have are…

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Answer 6

Well shackle length is mainly based on the height difference between the front and rear hangers. The rear hanger normally doesn't hang as low as the front so that the shackle can offset the difference and add the ability to move. What is the…

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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 absolute best cushioned equalizer that fits the dimensions you mentioned having would be the MORryde ALLTREK 4000 part #MR89DR as this is only option to provide vertical and horizontal cushioning. This would make a big difference and you'd be…

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Answer 9

For a single axle trailer, you want the shackle strap to be able to move so that you have the spring deflection needed for your suspension. Angled like the photo or even almost vertical is fine you just don't want the shackle strap to bind and…

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Answer 10

Hey Patrick, so for your leaf spring upgrade I am going to need to know a couple of things before I can get you over to the right part. Specifically, the length from eye to eye, the spring width, leaf thickness, and the number of leaves. From here I…

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Answer 11

Yes, going from a 4 leaf to a 6 leaf spring would add slightly to your ride height. For example, if the current 4 leaf spring has 3/8" thick leaves, and you go to a 6 leaf spring with 3/8" thick leaves, you would be adding 3/4" of…

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Answer 12

Since Grand Design is kind enough to list certain parts for their trailers I can confirm you have a 33" wheelbase on your 2020 Grand Design Transcend 27BHS. This means the MORryde Rubber Equalizers #MR87ZR will fit your trailer. Although I'm…

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