PEM Center Section - 6.33 Ratio - 31 Spline - Steel - Spool- Ford 9" Driver Shoe Heat Shield The Zamp RZ-18H Open Face

The Zamp RZ-18H Open Face Auto racing helmet is lightweight with a composite Fiberglass shell

and it features a band clamp mount for easier timing adjustments

Provides Clearance for up to 3" Exhaust System

1963-1964 Oldsmobile Super 88

1958-1985 Lincoln Continental

PEM Center Section - 6.33 Ratio - 31 Spline - Steel - Spool- Ford 9" Driver Shoe Heat Shield The Zamp RZ-18H Open FaceProduct Description: Differential Case Assembled 6. 33 Ratio 31 Spline Steel Spool Natural Ford 9 in 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.