Upgrade your 1973-1987 GM C10 with the SST Crossmember (XMG-24300), expertly designed for TREMEC T56 Magnum 6-speed transmissions. Engineered in-house by Silver Sport Transmissions, this crossmember is built to deliver OE-level or greater strength and durability. Made from heavy-duty box-welded steel, it provides exceptional rigidity and a precise fit for your C10 Squarebody truck. Whether you're performing a 6-speed transmission swap or building a high-performance street or show truck, this crossmember offers easy installation, maximum clearance, and reliable transmission support. Trust SST for high-quality, performance-driven components engineered to meet the needs of classic GM truck enthusiasts looking for strength, durability, and precision.