Steel single sided quick change pinion plate with climber gear, back nut, bolt and spacer are nickel plated, 12 holes for added strength.  Made of A36 high strength steel. Adjustments made easy with climber gear nut. 

Adjustment is 1 1/4" above the pinion to 2 1/4" below the pinion.  Adjustment nut is on a arc so rear end is not affected when raising or lowering.  

Powder coated black. 

This pinion plate can replace BSB, Wehrs, Keyser and many others.