55-57 GM B-BODY - COMPLETE CRATE - CENTURION 9-INCH SATIN BLACK 31-SPLINE 3.00 RATIO HELICAL LIMITED SLIP WILWOOD 11 DYNAPRO BLACK CALIPERS

The Currie 9-Inch Rear End Builder (MPN: CR-GB130TWAB) is designed for 1978-1988 GM G-body vehicles including Malibu, El Camino, Monte Carlo, Cutlass, Regal, Grand Prix, and Caballero. This pre-assembled unit features a Ford 9-inch housing with 3-inch diameter axle tubes, CNC machined face flange, nodular iron Sportsman gear case with Daytona big bearing pinion support and 1330 yoke, and heavy-duty 1/4-inch thick spring pad mounts in OEM locations. It includes alloy 31-spline 1541 alloy axles with tapered axle bearings and full-circle heavy-duty retainers. The system is a direct bolt-in replacement and fitment is based on matching the vehicle's original axle width, pinion location, suspension mounting points, and wheel bolt pattern.