This solidly built high performance 9-inch differential is a high-strength performance package with your budget in mind.&nbsp; It includes everything needed to put a high-performance 9-inch into your ride.&nbsp; The steel housing comes with a traditional 9-inch notch back, and axle face to axle face width specific to your vehicle.&nbsp; Included are forged axles with your choice of 31 or 35 splines, 1/2-inch studs, a completely built cast Iron center section with clutch-style posi, and your choice of gears.&nbsp; For a wide selection of brakes, choose from our Wilwood brakes collection.&nbsp; The axle face is drilled for 5x4-1/2 and 5x4-3/4 bolt patterns. You'll assemble the kit by installing the included bearings onto the axles, bolting the provided center section into the housing, and sliding the forged axles in and locking them. Oh, and add gear oil. That's it!&nbsp; Don't overlook the price and performance value from this well-prepared imported system.</div>