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Parts Needed to Add Electric Drum Brakes to a 16 Dual Axle Trailer  

Question:

I have a 16 ft. duel axle utility trailer with no brakes at the present time. what parts do i need to install them.second question do i need brakes on both sides. could you please enter what parts you recommend, it also has 14 inch wheels with 5 hole lugs. 4 3/4 thank you

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Expert Reply:

To install electric brakes on your trailer you need brake mounting flanges, brake assemblies, hub and drum assemblies, trailer wiring for the brakes, a breakaway kit, and a brake controller installed in your vehicle.

You do want to install brakes on both sides of the axle(s) otherwise your trailer will pull to one side when your brakes are applied. We also recommend installing brakes on all of the axles that you have on your trailer. This helps to ensure that you have enough stopping power, plus it keeps your brakes from wearing down quicker.

I can make some recommendations for you but you need to confirm that the parts will fit before getting them.

It sounds like you have 3,500 lb axles and 14" wheels with a 5 on 4-1/2" bolt pattern (see attached article). If this is the case then I recommend the following part numbers in the following quantities:

Brake Mounting Flange - # 4-35 (for a 2-3/8" round axle) (4)
Brake Assemblies - # AKEBRK-35-SA (2)
Hub and Drum Assembly - # AKHD-545-35-EZ-K (2)
Breakaway Kit # 20099 (1)

Trailer wiring would include the Trailer Wiring 7-Way Upgrade Kit # HS381-9000 along with 10 Gauge Wire # 10-1-1 and Butt Connectors # DW05745-5.

To ensure that the hub and drum assembly is the correct fit for your spindle you need to pull the hub and verify that your inner bearing is part # L68149, your outer bearing is part # L44649, and that your grease seal has a 1.719" inner diameter.

I have attached some helpful articles and videos to assist.

expert reply by:
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Jon G
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