7387 GM Truck 7391 SUV Crew Cab SM465 Rear Main Shaft Thrust Washer

73-87 GM Truck 73-91 SUV Crew Cab SM465 Rear Main Shaft Thrust Washer

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• Good original usable condition rear main shaft thrust washer.
• There where two sizes used both are 3/16" thick one is 3 1/4" diameter and the other is 3" in diameter.
• They are interchangeable.
• This listing is for the 3 1/4" in diameter one.
• This washer goes under the rear bearing and lock nut on the main shaft 2wd (35 spline) or 4x4 versions 10 spline or 32 spline output shafts.
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