Extension Housing Seal Rear output seal

The Winters Extension Housing Seal (Part Number 67257) is a precision rear output shaft seal engineered for Falcon transmission applications. This rubber and steel composite seal prevents fluid leakage at the tailshaft housing, a critical function in maintaining transmission integrity and preventing costly fluid loss during operation. Built to OEM specifications, this seal addresses one of the most common wear points in high-performance and heavily-used transmissions.

The dual-material construction combines resilient rubber lip sealing with a steel case for dimensional stability and pressure retention. At 3 inches in diameter with a 0.65-inch thickness profile, the seal provides a tight fit within the housing bore while maintaining the flexibility needed to conform to shaft runout. The compact 0.06-pound weight reflects its efficient design—no unnecessary mass, just effective sealing geometry. This specification-matched seal restores factory-correct operation on Falcon transmissions, whether in street performance builds, vintage muscle car restorations, or transmission rebuild applications where original-equipment reliability is required.

Mechanics and transmission specialists rely on Winters extension housing seals for rebuild work and preventative maintenance. When transmission fluid seeps from the tailshaft area, a worn seal is the likely culprit—replacement before complete failure prevents damage to the yoke, driveshaft U-joints, and surrounding components. This single-unit seal is the correct choice for anyone rebuilding a Falcon transmission or addressing an existing leak. Installation requires transmission removal or tailshaft access, making this a core component for any serious transmission rebuild or modification project.