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What Information is Needed to Add Brakes to a Trailer


Hello, id like to do the following to my tandem trailer: -Convert From the old wheel style to a wheel with Lugs and lug nuts. -Add trailer breaks to the front axle that does not have the mounting flange or breaks. Id like to know what measurements i need to give you in order to determine if this is possible and how to do it. Thank you very much!


Expert Reply:

To add brakes to the front axle on your trailer I would need to know the weight capacity of your axle (which can be found stamped on the axle if you don't know it off-hand), as well as the part numbers of your Inner and Outer Bearings and you Grease Seal on your idler hub. The bolt pattern of your hub and size of your tire/wheel would be helpful as well.

If you cannot find the part numbers on your bearings or seal then you can measure the B, C, and D locations on your spindle (see attached picture). You will want to use a digital caliper, like part # 301-17068, and measure to the 3rd decimal place as it needs to be very accurate.

Since you don't have a brake mounting flange already I would need to know the diameter of your axle so that I can recommend the correct part for your application.

If you want to go with hydraulic brakes you will need to make sure you have a surge brake coupler on your trailer. Otherwise for electric brakes you would need a brake controller in your tow vehicle.

Let me know what you find and I can help you get the correct parts ordered.

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expert reply by:
Jon G

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