Trailer Brake Mounting Flange for 3-1/2" Axles, 12-1/4" Brake Assemblies Quantity in Cart: None Code: 4-50 Price: $15.95 Lowest Price Pledge Shipping Weight: 2.00 pounds Rating: Write A Review Order $150.00 to qualify for free shipping Quantity: Trailer Brake Mounting Flange for 3-1/2" Round Axles Hole I.D. is 3.01" 4 mounting holes Designed for use with 12.25" brake assemblies (8K axles). Find more products like me in: Brake Mounting Flanges