Photo 1 of Four Ready Trailer Brake Backing Plate Flange for 3-1/8" Axle, 5 Bolt, 4-1/4" Width, 4-1/4" Height, 5" Corner to Corner, 1/4" Thick, 3-1/8" Inner Hole Diameter, Takes 3/8" Bolts, 2-1/8" Spacing

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Photo 1 of Four Ready Trailer Brake Backing Plate Flange for 3-1/8" Axle, 5 Bolt, 4-1/4" Width, 4-1/4" Height, 5" Corner to Corner, 1/4" Thick, 3-1/8" Inner Hole Diameter, Takes 3/8" Bolts, 2-1/8" SpacingPhoto 2 of Four Ready Trailer Brake Backing Plate Flange for 3-1/8" Axle, 5 Bolt, 4-1/4" Width, 4-1/4" Height, 5" Corner to Corner, 1/4" Thick, 3-1/8" Inner Hole Diameter, Takes 3/8" Bolts, 2-1/8" SpacingPhoto 3 of Four Ready Trailer Brake Backing Plate Flange for 3-1/8" Axle, 5 Bolt, 4-1/4" Width, 4-1/4" Height, 5" Corner to Corner, 1/4" Thick, 3-1/8" Inner Hole Diameter, Takes 3/8" Bolts, 2-1/8" Spacing