LS and LT Transmission Crossmember for 1965-1970 B-Body Coupes
Swapping an LS or LT engine into a 1965-1970 B-Body coupe demands precision in crossmember placement to maintain proper driveline alignment. Engineered from heavy gauge steel, this crossmember bolts directly to Impala and Caprice frame rails with no cutting or welding required. By matching factory mounting locations for popular transmissions such as the 700R4, 4L60 and TH350 it preserves correct driveshaft angle and minimizes vibration. Whether you opt for an automatic or manual gearbox this design also adds rigidity to the chassis for sharper handling and consistent performance.
Heavy Gauge Steel Ensuring Chassis Reinforcement
Constructed from heavy gauge steel, this crossmember is engineered to resist bending under the increased torque of LS and LT engines. Key weld seams reinforce critical stress points along the frame rails, reducing flex during hard acceleration or spirited cornering. By integrating directly into the vehicle's structure, it significantly boosts chassis rigidity without adding unnecessary mass. The result is sharper handling and improved structural longevity under daily driving loads.
Bolt-In Design Streamlines LS and LT Integration
This crossmember bolts directly to factory holes on Impala and Caprice frame rails, eliminating any need for cutting, welding or custom fitting. Each mounting point is precisely located to maintain correct driveline alignment from the outset, ensuring the driveshaft angle remains optimal. The simplified installation reduces labor time and prevents alignment errors that can lead to vibration or premature wear. Even builders new to engine conversions will find the process straightforward and reliable.
Precision Fit Tailored to 1965 to 1970 B-Body Frames
Every contour and mounting flange on this crossmember matches the unique frame architecture of 1965 to 1970 B-Body Impala and Caprice models. By preserving original load paths through the chassis, it prevents stress concentrations that could otherwise lead to fatigue or chassis distortion. This exact fit allows the vehicle to retain its factory handling characteristics while accommodating modern power levels. Enthusiasts benefit from a seamless integration that respects the car's classic design intent.
Versatile Transmission Support for Automatic and Manual Applications
Designed for popular automatic transmissions such as the 700R4, 4L60 and TH350 as well as manual gearboxes, the crossmember positions the mounting flange at the correct height and setback. This ensures smooth driveshaft alignment, reducing vibration and component wear over time. Builders gain the flexibility to choose their preferred transmission without relying on additional brackets or adapters. The universal support simplifies project planning and delivers consistent driveline performance.
This crossmember delivers precise fit and consistent support. For a Related CRS product consider our 1958-1964 B-Body Sure-Fit Crossmember (Only).