Sure-fit LS Transmission Crossmember for Tri-5
If your project involves fitting an LS transmission into a 1955 to 1957 Chevy Tri-5 chassis, this Sure-fit Crossmember (Only) Tri-5 positions the gearbox securely under factory frame rails. It mounts with existing holes and heavy gauge steel construction to safeguard transmission alignment while resisting flex under load. Builders will appreciate the straightforward bolt in installation that cuts setup time so they can spend more effort on tuning rather than fabrication.
Direct Fit for Effortless LS Transmission Integration
This crossmember bolts directly to the original frame rails using factory-located holes, guiding your LS transmission into the correct position without cutting or welding. By eliminating custom bracket fabrication, it reduces installation time and lets builders focus on tuning rather than trial fitting. The straightforward bolt in design pairs with clear instructions and included hardware to ensure every step is intuitive. Whether you're a weekend hobbyist or a seasoned restorer, the fast fit process delivers a predictable result every time.
Robust Steel Frame Support for Heavy Loads
Constructed from premium gauge steel, the crossmember stands up to high torque and repeated stress cycles without bending or fatigue. Strategic welds reinforce critical load points, maintaining consistent support under spirited driving or track conditions. This sturdy foundation protects mounts and bushings by absorbing shocks and torsional forces that would otherwise distort chassis geometry. The result is a durable platform that maintains its strength and shape through years of demanding use.
Precise Alignment to Enhance Handling and Component Life
Engineered to exacting tolerances, the crossmember establishes true relation between engine, transmission, and chassis rails, minimizing driveline angles and vibration. This accurate alignment delivers a smoother throttle feel and sharper response, especially when accelerating out of corners. By reducing unwanted movement, it also extends the service life of mounts, bushings, and universal joints. Drivers will notice improved straight-line stability and more predictable handling in every ride.
Vehicle Specific Design for 1955 to 1957 Chevy Tri-5 Models
Every dimension of this crossmember is tailored to non-convertible Tri-5 frames from 1955 through 1957, ensuring a perfect match without trimming or adapters. It sits precisely under the factory rails, preserving original ground clearance and ride height. The purpose-built geometry accommodates common LS transmissions and keeps driveline angles in check. With this targeted approach, builders avoid fitment headaches and maintain the classic proportions of their Tri-5 resto-mods.
Engineered for precise fit and reliable performance for your 1955 to 1957 Chevy LS swap.