BILLET FRONT BEARING PLATE (2″ RETRO) These retro or front discharge bearing plates are CNC machined from 6061 T-6 aluminum. They are symmetrical in design and come polished. These plates use the standard .308″ dowel pin. They are sold with Heavy Duty bearing retainers, .308″ pins, O-rings, and mounting hardware. Retro opening is 1.0″ and designed for use with a #2505 set-back plate. Use of a #4016 coupler spacer or longer coupler will be required as the plate is 3/4″ thicker than standard bearing plates. Note: Bearings and Seals not included.