8L90E Transmission Mount Adapter for LS and LT Engine Swaps
Fitting an 8L90E transmission to an LS or LT swap often leaves builders wrestling with mount alignment and custom fabrication. The 8L90E Transmission Mount Adapter solves this by allowing both 8L90E and 10L90E tailshaft housings to bolt directly to standard transmission mounts. With CNC machined aluminum construction that balances strength and light weight, it ensures reliable support under high torque while minimizing installation time.
Maintaining Driveshaft Alignment to Minimize Vibration
The adapter's precision-machined mating surface holds the transmission at factory-specified angles, ensuring the driveshaft runs true across its entire operating range. By eliminating offset stresses, universal joint binding and premature spline wear are prevented, resulting in smoother power transfer even under sudden torque demands. This focus on accurate alignment reduces noise and preserves component life for both street and track applications.
Precision Kit Hardware for Secure and Repeatable Assembly
Each adapter ships with the exact mounting screws required for installation, matched to the thread pitches and torque specifications of the 8L90E and 10L90E housings. This complete kit approach removes guesswork and prevents fastener selection errors, so builders can apply accurate torque with basic hand tools. The result is a consistent clamp load that maintains the adapter's position through thousands of miles without loosening.
Engineered Geometry for LS and LT Block Compatibility
The adapter's bolt pattern mirrors the factory transmission flange, allowing it to mate seamlessly with GM LS and LT engine blocks. Its compact profile ensures there is no need for additional spacers or shims, preserving the vehicle’s intended driveshaft length and engine setback. By matching the OEM footprint, the design also retains proper clearance around exhaust headers and frame rails.
Designed for straightforward installation and enduring performance under high torque conditions.