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Original Message
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Yes, they do have the same numbers for some apps.. |
By Hawkrod - 05/13/2005 1:30:32 PM; IP 205.188.117.130 |
The parts were the same casting and then were just machined differently. You can take a C7OR Fairlane 28 spline tailshaft and bore the rear bushing hole larger and make it into a C7OR Mustang 31 spline tailshaft housing. Same thing with 70 Mustangs, they all used the D0ZR housing but they were machined two different ways. The problem is you are confusing a part number with a casting number. The part number is the number Ford applied to the finished product, the engineering or casting number is the number on the item that identifies the basic part before finish. Another good example of this is 66-69 GT heads. They can have a casting numbers of C6AE-R C7AE-A or C8AE-H (short list) but not all heads with these numbers are GT heads because they were drilled differently for 8 or 14 exhaust bolts. As far as part numbers for these heads, you don't want to see the list, there are at least a dozen part numbers that are applied to the C8AE-H head alone. The numbers were different based on whether or not it had smog ports drilled, which exhaust pattern was drilled and even which valve springs were installed but they all still have the C8AE-H casting number and as we know they are not all directly interchangeable without modification. Hawkrod |
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