Oil seal for rear axle on any 1968-73 Mercury Cougar or Most Ford cars with 31 spline axles. Typically only 428CJ, 427-4V, and Boss 302's got the heavy duty 31 splined axles from the factory, most Cougar and Mustangs have 28 splined axles. Seal measurements: 1-1/2 inch inside diameter, 2-17/64 inch outside diameter. Two needed per axle, sold individually. We stock Timken brand of seals.
Replaces Ford part number C7OZ-1177-A.