Repl. Starter ring gear BT98-up 66teeth

This retro-fit starter motor pinion gear is uniquely designed and manufactured to be compatible with 1994-2006 starter extension assemblies only, while allowing the use of the much stronger 1990 thru 1993 style 66 tooth ring gear. A must for Big Cubic Inch and High Performance motors as these put additional stress on these critical components, particularly when the motor back-fires during start-up. Pinion gear and starter ring must be ordered separately.