PEM Premium Quick Change Gear Set - Set 1A - 10 Spline - 4.11 Ratio 4.23 / 4.00 - 4.86 Ratio 5.00 / 4.72 HH-1.25 High density padding gives added

High density padding gives added support to lower back area

Comes with quality

See Super Victor CNC listings for CNC-ported

From pistons to engine bearing components

Using the Centerforce centrifugal weights (where applicable)

PEM Premium Quick Change Gear Set - Set 1A - 10 Spline - 4.11 Ratio 4.23 / 4.00 - 4.86 Ratio 5.00 / 4.72 HH-1.25 High density padding gives addedProduct 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.