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Old 09-18-2019, 07:47 AM   #3
78F350
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Join Date: Jul 2014
Location: Oklahoma
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The 2001 engine should have a boot on bottom of the AOS. The '03 and '04 don't. Your engine may be a remanufactured engine. Does the Engine serial number have an "AT" in it? The remanufactured engines may have characteristics of the later engines.
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