Detroit Locker Master Rear Differential Installation Kit - 8.5 in - GM 10-Bolt 813003 Increases the amount of horsepower

Increases the amount of horsepower and torque that can safely be applied to the chassis

2006-2007 Mercury Grand Marquis

These BBK catted H pipes will install directly to the factory exhaust headers or any aftermarket shorty exhaust and feature factory O2 sensor placement for simple direct installation

Fuel Bowls / Metering Blocks

For Small and Big Block Chevy Applications with MSD Distributors

Detroit Locker Master Rear Differential Installation Kit - 8.5 in - GM 10-Bolt 813003 Increases the amount of horsepowerProduct Description: Differential Installation Kit Master Rear Bearings Crush Sleeve Gaskets Hardware Seals Shims Thread Locker 8. 5 in GM 10 Bolt The legendary Detroit Locker began the revolution in performance differentials and still leads the industry today as an Eaton brand. The Detroit Locker is the most durable and dependable locking differential available. The Detroit Locker maximizes traction by delivering 100% of the torque to both drive