Dexter Pair 12x2, 9 hole (4 hole AND 5 hole) Backing Plate Trailer Axle Brake (23-105-09+23-106-09)

Pair of Dexter 12" x 2"Electric Brake Assemblies, 9 HolePart#: 023-105-09 023-106-09 Capacity: 6,000 lbs per pair Mounts with either AL-KO/Hayes 4-bolt or standard 5-bolt flange Mounting bolts sold separately Center bore 3.25" HOLE DIMENSIONS: (Refer To 2nd picture)  2 Biggest Top holes across: 3-1/8 inches 2 Biggest Bottom holes across: 2-/12 inches 2 Biggest Vertical holes across: 3-3/8 inches Center Hole: 3-1/4"