Transmission Crossmember – 63-87 GMC Chevy Truck

Universal Transmission Crossmember for 1963–1987 GM Chevy/GMC C10 Trucks – Fits TH350, TH400, 700R4, 4L60E

Upgrade your classic GM truck with our heavy-duty Transmission Crossmember, engineered for strength, clearance, and versatility. Precision laser-cut from durable 3/16" mild steel, this crossmember is the ideal solution for mounting popular transmissions like the TH350, TH400, 700R4, and 4L60E into your 1963–1987 Chevy or GMC C10 truck.

Designed with performance and practicality in mind, this crossmember allows you to run up to a 4” exhaust pipe underneath while maintaining a high-clearance profile above the bottom of the frame—perfect for lowered or performance-driven builds.

Key Features:

• ✅ Compatible with TH350, TH400, 700R4, and 4L60E transmissions
• ✅ Laser-cut from 3/16" thick mild steel for superior strength
• ✅ Transmission mount height: 5” from top of crossmember to trans mount
• ✅ Comes with mounting hardware for easy installation
• ✅ Uncoated finish—ready for paint, powder coat, or other custom finishes
• ✅ Requires Energy Suspension mount #3.1108G (not included)

While specifically designed for 1963–1987 GM truck frames, this crossmember may fit other applications—please refer to measurements for custom setups or swaps.

Built to handle the torque of your upgraded drivetrain while maximizing ground and exhaust clearance, this crossmember is a must-have for your C10 transmission swap project.