To ensure reliability, purchase GM part # 20768576 Bearing Assembly, Front Differential Drive Pinion Gear Inner. It is sometimes referred to as GMC Pinion Bearing. Directly from GM, genuine parts are superb with regards to quality, longevity, and fit. Every single part passed stringent quality testing, so you can be sure that it's safe, durable, and built to perform like your original parts. This part fits specific GMC Sierra models.
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