What does a pinion seal do?

A pinion seal is a critical component that prevents differential fluid from leaking out of the differential housing around the pinion shaft. It also stops dirt, water, and other contaminants from entering the differential, which could damage internal gears and bearings.

What vehicles does this specific pinion seal fit?

This Yukon Gear YMS8163N pinion seal is made for 1963-1964 Oldsmobile Dropout differentials. It also fits 1963-1964 Buick Skylark and Wildcat, and 1963-1964 Pontiac Catalina, Grand Prix, and LeMans, as well as the 1964 Pontiac GTO.

Does this seal come with any installation hardware?

This product includes one Yukon Gear YMS8163N pinion seal. Installation hardware, such as a new crush sleeve or nut, is typically sold separately and may be required depending on the specific repair procedure.

Yukon Gear 63-64 Oldsmobile Dropout Pinion Seal

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Specifications

Brand: Yukon Gear & Axle
Part #: YMS8163N
UPC: 883584301790

Yukon Gear 63-64 Oldsmobile Dropout Pinion Seal

Name: Yukon Gear 63-64 Oldsmobile Dropout Pinion Seal
Brand: Yukon Gear & Axle
Price: 70.89 USD
Availability: InStock

$70.89

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Yukon Gear & Axle pinion seal for 1963-1964 Oldsmobile Dropout differentials. Keeps differential fluid in and contaminants out.

Key Features

Fits 1963-1964 Oldsmobile Dropout differentials.
Yukon Mighty Seal uses advanced design and manufacturing for a tight, long-lasting seal.
Features a 2.890 inch outside diameter for a precise fit.
Helps prevent differential fluid leaks and contamination.
Compatible with various Buick and Pontiac models from 1963-1964.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Will this fit your vehicle?

Product Details

This is the Yukon Gear & Axle YMS8163N pinion seal, designed to keep your differential fluid where it belongs and prevent contaminants from getting in. You get one precision-fit pinion seal in this package, ready to be installed in your 1963 or 1964 Oldsmobile Dropout differential. This seal is crucial for the longevity of your drivetrain components, ensuring proper lubrication and preventing damage from dirt and moisture.

Yukon Mighty Seals are built using the latest design and manufacturing technologies. This means you get a seal that fits tight and is made to last for years. The seal has an outside diameter of 2.890 inches, which is a key measurement for ensuring a proper seal against the differential housing. This part fits a range of vehicles from that era, including models like the Buick Skylark, Pontiac Catalina, and the 1964 Pontiac GTO.