AUBURN PRO GM 7.5 CHEVY 10 BOLT 28 SPLINE 3.23 AND UP AG 542046-PRO Auburn Gear Pro Series Positraction for GM 7.5/7.625 rearends. The Auburn Gear limited slip uses a long-proven cone design to provide traction for performance and off-road applications. Auburn warranties their units for one year against manufacturing defects. Feel free to call or...