TH400 Tailshaft Housing w/Rollering Bearing

The Reid Racing TH400 Tailshaft Housing with Roller Bearing is a precision aluminum component engineered for high-performance automatic transmission builds. Designed to Powerglide length specifications, this tailshaft housing accepts GM TH400 transmissions and comes complete with an integrated roller bearing, eliminating the need for separate bearing sourcing during assembly or rebuild operations.

Cast from lightweight aluminum in natural finish, the housing provides structural integrity while minimizing rotating mass—a critical factor in drag racing, street performance, and off-road applications where every pound of unsprung weight affects acceleration and handling. The pre-installed roller bearing ensures proper shaft alignment and load distribution, reducing assembly labor and improving reliability under repeated high-torque cycles. Dimensions of 7.3 x 5.6 x 7.4 inches with a weight of 3.55 lbs make this component a practical fit for space-constrained engine bays and custom driveline layouts.

This tailshaft housing serves builders, shops, and enthusiasts who demand OEM-grade components for TH400 transmission conversions. Whether adapting a classic vehicle with modern automatic capability, assembling a competition drag car, or completing a comprehensive drivetrain rebuild, this housing provides the precision fit and durability required for repeatable performance. The inclusion of the roller bearing streamlines the assembly process and ensures proper drive shaft support from initial startup through sustained high-load operation.

Reid Racing components are recognized in high-performance automotive circles for attention to manufacturing tolerances and material selection. This tailshaft housing reflects that engineering focus, providing builders with a verified OEM-compatible part rather than a generic aftermarket substitute.