Decode steering box cast numbers - Vintage Mustang Forums
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post #1 of 2 (permalink) Old 05-28-2017, 08:46 PM Thread Starter
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Decode steering box cast numbers

Can anyone help me decode the casting numbers on a steering box a friend gave me and believes came out of an "early" Hi-Po mustang? Here are the casting numbers: "C3DR" and below that "3550C." There's also what I believe is a date code of "4E15" that I think translates to an assembly date of May 15, 1964. Unfortunately but not surprisingly there's no aluminum tag on the box. This would be an interesting steering box if it was correct for an early 1965 K code car, but to be sure of that I'd like to firm up how those casting numbers translate. Thanks for any insight. Ron...
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post #2 of 2 (permalink) Old 05-28-2017, 09:00 PM
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I think a C3DR-3550-C housing could have been in just about EVERY '65-66 Mustang, and maybe even later models. It's the "guts" inside that would determine whether it was a manual box, a power box or a "fast" manual box.


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