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Show you the Hayes/AL-KO 12" x 2" Electric Brake Assemblies for the right-hand side,
part number 185150. This is a 12" x 2" assembly. So measure the diameter across the shoe and
there is our 12". And then we'll measure the width of the shoe and there is our 2" mark.
When paired up with the assembly for the left-hand side, these brakes are good for axles rated
up to 7,000 pounds. There are two mounting patterns that you can use with this assembly.
The smaller holes are for standard 5 bolt pattern. And the larger 4 holes with the two
tight ones at the bottom are for the AL-KO or Hayes for bolt pattern. Also included with
this assembly are a pair of flyer leads that were into the magnet that you use for your
electrical connections. It doesn't matter which you use for ground and which you use
for your brake feed as long as you have a good electrical connection. This is a manual
adjust assembly.