B-Body Transmission Crossmember for LS and LT Engine Swaps
When upgrading a 1965 to 1970 B Body with an LS or LT powerplant, precise crossmember placement is essential for driveline alignment and smooth operation. This transmission crossmember bolts directly to the frame of Impala or Caprice models without any trimming or welding required. Built from heavy gauge steel, it adds rigidity to the chassis and supports both automatic and manual transmissions commonly used in engine conversions.
Premium Steel Fabrication Ensuring Unmatched Chassis Support
The 1965-1970 B Body crossmember is formed from premium gauge steel that resists bending under the increased torque of LS and LT engines. Carefully executed weld seams reinforce high-stress points along the frame rails, reducing flex during hard acceleration or spirited cornering. By integrating this crossmember directly into the vehicle's structure, chassis rigidity is significantly increased without adding unnecessary weight. This robust foundation translates to confident handling and improved longevity under daily driving conditions.
Bolt-in Installation Streamlining LS and LT Engine Integration
Designed for a straightforward bolt-in installation, this crossmember eliminates the need for cutting, welding or custom fitting on your Impala or Caprice frame. Each mounting point aligns precisely with factory holes, ensuring correct driveline geometry straight from the start. This approach not only reduces installation time but also maintains original frame integrity, preventing alignment issues that can arise from improper placement. Even novice builders will appreciate the simplicity and reliability of this setup.
Precision Engineering for Classic Impala and Caprice Frames
Every contour of the crossmember matches the unique frame architecture of 1965 to 1970 B Body vehicles, offering a direct fit that preserves OEM mounting locations. This level of precision prevents stress concentrations and maintains the original load paths through the chassis. As a result, vehicle dynamics remain true to factory design while accommodating increased power output. Enthusiasts retain the classic look and feel of their Impala or Caprice without compromising structural harmony.
Transmission Compatibility for Automatic and Manual Setups
This crossmember is engineered to support popular automatic transmissions like the 700R4, 4L60 and TH350 as well as manual gearbox options without additional brackets or adapters. The mounting flange sits at the correct height and setback for smooth driveshaft alignment, reducing vibration and wear. By accommodating both automatic and manual drivetrains, it offers flexibility for a wide range of engine swap projects. Builders gain the freedom to choose their preferred transmission while ensuring optimal performance.
Count on precise fitment and lasting strength. For a related CRS product consider our 1958-1964 B-Body Sure-Fit Crossmember (Only).