trailer electric brakes how to size
Brake assemblies are listed by 12 x 2 or 10 x 2-1/4, which is the diameter of the brakes (10, 12) and the width of the brake shoes (2, 2-1/4). You will want to get the bolt pattern of the brake mounting flange on your axle and if it is a 4-bolt flange or a 5-bolt flange.Also, if you get the weight capacity of the axles on your trailer it will help you determine brake size.The 3,500-lb axles will use 10 x 2-1/4 inch brakes and the 5,200-lb to 7,000-lb axles will use 12 x 2 inch brakes.All of this information will help you get the correct brake assemblies for your trailer.rake assemblies are listed by 12 x 2 or 10 x 2-1/4, which is the diameter of the brakes (10, 12) and the width of the brake shoes (2, 2-1/4). You will want to get the bolt pattern of the brake mounting flange on your axle and if it is a 4-bolt flange or a 5-bolt flange.