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Old 02-05-2015, 11:03 AM   #51
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Join Date: Nov 2012
Location: Wichita KS
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Default Re: Oil pan 59AB photos

There are 3 ring and 4 ring pistons. I believe the original design from Ford was the 4 ring and the 3 ring was a more modern replacement. Not sure it would make any difference for what you are doing, a lot of the current rebuilds use the 3 ring style.
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