Model352A10
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Posted Saturday, October 24, 2015 3:53 AM
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Group: Forum User
Last Active: Thursday, January 03, 2019 11:54 AM
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Can anyone tell me when the 13sp came out? The first I saw was 68.
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Cam
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Posted Wednesday, November 25, 2015 10:18 AM
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Group: Forum User
Last Active: Wednesday, October 02, 2019 6:14 AM
Posts: 997,
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I would say mid '60s. I would need to do more research to pin it down further. I am going through '60s Peterbilt records as I have time. I will update this as I find earlier and earlier 13 speeds, but I do know that they were list in 1967 records. My gut feeling is that they were around a couple years before that. Often a new component is available, but not initially popular, it takes a year or two, or more.
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