Upgrade your vehicle's performance with the National Seal/Bearing Manual Transmission Drive Shaft Bearing-Differential Pinion Race, part number M88010. This bearing is designed to provide reliable and durable service, exceeding standard OEM specifications for a custom performance fit. The precision cup bore measures 2.6875 inches, with a corresponding cup radius of 1.5750 MM, ensuring a perfect alignment with your vehicle's components. The bearing features a cup length of 17.4630 MM and a cup width of 0.6875 inches, catering to a variety of custom applications. Its unique cup radius of 0.0620 inches and interchange part numbers, including 501070 and NBM88010, make it a versatile choice for enthusiasts seeking a robust replacement or upgrade. Confirm fitment for your specific vehicle before purchasing to ensure optimal compatibility. Brand: National Seal/Bearing Model: M88010 Shipped with USPS Ground Advantage Mail. You Will Receive 1 ea RARE VINTAGE COLLECTIBLE SHIPS IN 24 HOURS Packed By Our Award Winning Packaging And Shipping Department Long Time E-commerce Seller For Over 20 Years LIMITED AVAILABILITY Follow Our Store For Rare Products Posted Daily and Specials Please click https://www.ebay.com/usr/boughtnowcommerce Our Inventory Box Number: 11000