Source for Replacement Rear Drum Backing Plate - The 1947 - Present Chevrolet & GMC Truck Message Board Network

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Source for Replacement Rear Drum Backing Plate

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02-18-2026, 10:25 PM	#7
Wellwood Junior Member Join Date: Dec 2024 Location: Atlanta, Georgia Posts: 27	Re: Source for Replacement Rear Drum Backing Plate It is a 12 bolt GM rear axle. Numbers cast in the housing are GM66 and 3896838 with an N. I looked on the passenger side axle tube for stamped numbers, but apparently the paint on there is a bit too thick? __________________ Gone fission

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