Dexter Left Side 12x2 Backing Plate Trailer Axle Brake 9 (4 & 5) Hole Old Style (K23-105-09)

  Genuine Dexter 12" 6000# Electric 9 Bolt Brake Backing Plate, Left Hand (Drivers) Part Number: 23-105-9 (023-105-09) 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" Dexter 12" x 2" Left Hand electric complete brake assembly with a 9 bolt mounting flange.  Features: 6000lb capacity per pair.  Mounts with 4 or 5 bolts (not included).  Uses 12" Hub/Drums. Nuts-38N, bolts-7-5, and washers-38LW included • Fits a 6000lb axle with a 4 or 5 bolt pattern on the mounting flange (This special 4 and 5 bolt pattern fits old style Dexter axles as well as the Al-ko/Hayes 6000lb axles with a 4 bolt mounting flange) • Left Hand(driver's side)• Complete assembly ready to bolt on and wire• For use with 12" inside diameter drum• The shoes are 2" wide