National Grease Seal Rear Axle 28 Spline (WEX) 1.375" Shaft 1967-1973

National: NATIONAL 9569S

Regular Price: $15.99

Special Price: $11.19

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Product Description

National Rear Axle Grease Seal for 1967-1973 Mustangs with a 28 Spline (WEX) 1.375" Shaft.

National's Rear Axle Grease Seal has a lay-down sealing lip design to ensure a long life. The sealing lip design, also helps to withstand extreme temperatures, shaft imperfections, shaft/bore misalignment and excessive shaft thrust or movement. This National seal delivers unsurpassed performance when stopping leakage and is officially licensed by NASCAR for its reliability. Replacing the seal during any servicing of the rear end is advised for optimum performance.

Mustang Applications

This product will fit the following Ford Mustang years:

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Product Questions


I've got a 67 289 AT with a standard rear end. I've got an axle seal leaking. Do I have 24 or 28 spline axles?

Asked by: Emile
Most likely it's a 28-spline axle. It's possible it's a 31-spline, but most early model cars were 28-spline, especially small block cars like yours.
Answered by: CJ Pony Parts
Date published: 2015-02-10
  • 2015-05-23T12:45CST
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