PEM Premium Quick Change Gear Set - Set 1A - 10 Spline - 4.11 Ratio 4.23 / 4.00 - 4.86 Ratio 5.00 / 4.72 57BK increases stability while not sacrificing

increases stability while not sacrificing ride quality

Replacement Parts: Square O-Ring: #MOR97321

Features:High voltage coil designed for short duration applications onlyPrimary and secondary windings are encased in Ciba polyurethane for vibration protectionExtremely low primary resistanceHousing is molded from a durable and high dielectric polyesterSupplied with rubber shock mountsFor MSD 7 and 8 ignitions only

Designed in conjunction with Hooker BlackHeart C10 engine swap parts to provide bolt-in installation of BlackHeart LS and LT swap manifolds

1969-1970 Mercury Marauder

PEM Premium Quick Change Gear Set - Set 1A - 10 Spline - 4.11 Ratio 4.23 / 4.00 - 4.86 Ratio 5.00 / 4.72 57BK increases stability while not sacrificingProduct Description: Quick Change Gear Set Premium Set 1A 10 Spline 4. 11 Ratio 4. 23 4. 00 4. 86 Ratio 5. 00 4. 72 Steel Sold Individually PEM Racing (Performance Engineering and Manufacturing) offers a wide selection of quick change gear sets, ring and pinion gears, differential cases, and other rear end components.