Schaeffler Differential Pinion Seal,Differential Seal P/N:SS3741
Keep lubricant inside the rear differential and road grime out with the Schaeffler Differential Pinion Seal SS2709. It is a direct-fit replacement for many vehicles, among them the 1965-1970 Buick LeSabre, the 1964-1970 Buick Skylark and the 1968-1969 Buick Special.
The pinion seal sits where the driveshaft meets the rear differential. The seal body stays stationary while its sealing lip rides against the rotating pinion yoke or flange. This holds the differential lubricant in and helps keep contaminants out.
Signs this seal may need replacing: Look for lubricant seeping or dripping at the front of the rear differential, an oily film on the housing near the driveshaft connection, or a low differential fluid level. Confirm the source of the leak before replacing the seal. Follow the vehicle service information for the correct pinion nut torque and preload.
See the "Vehicles it fits" section for the full list of vehicles and engine details.
Interchange: 8620N · 16500 · 4132709100
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What does the Schaeffler SS2709 pinion seal do?
It seals the pinion opening of the rear differential. It holds the differential lubricant in and helps keep dirt, dust and moisture out.
Which vehicles does SS2709 fit?
It fits many vehicles, among them the 1965-1970 Buick LeSabre, 1964-1970 Buick Skylark and 1968-1969 Buick Special. See the "Vehicles it fits" section for the full list.
What are signs of a failing pinion seal?
Lubricant seeping or dripping at the front of the rear differential, or an oily film on the housing, may point to a worn seal. Confirm the leak source before replacing it.
Is this seal built to OEM standards?
Schaeffler states it is designed and manufactured to meet stringent OEM standards. A robust quality-assurance process backs it.
Is there anything to know before installing it?
Installation typically involves removing the driveshaft and the pinion nut. Follow the vehicle service information for the correct pinion nut torque and preload.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.