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Rear axle codes.

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Old 06-17-2008, 09:10 PM   #1
65ZR1
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Default Rear axle codes.

I have a posi unit that may be from a corvette since the year of the date code is a single digit. The gear code is FH. Can someone tell me what this code belongs to? My numbers book does not have axle codes.

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Oh yeah, the date code is feb 23 1960
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Old 06-17-2008, 09:54 PM   #2
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I'm not seeing anything "FH" listed for any vettes 53-67 in the NCRS spec guide.
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Old 06-17-2008, 11:44 PM   #3
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1960 passenger car with hi-perf 348, 4sp 3.70 ratio.
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Old 06-18-2008, 06:13 AM   #4
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Thanks again! I need to get a better numbers book. Any suggestions?
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Old 06-18-2008, 09:23 AM   #5
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I have the NCRS "Corvette Specifications Guide" which will cover most numbers for a specific generation corvette. I also have their "Technical Information Manual & Judging Guide" (TIM) that addresses a specific year, both are available from their web site. "Corvette by the Numbers" by Alan Colvin is also a good source which is available at the NCRS site or Amazon, etc.

These books are Corvette specific & don't include the other Chevy codes.
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Old 06-18-2008, 01:53 PM   #6
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Quote:
Originally Posted by Corps Vet View Post
I'm not seeing anything "FH" listed for any vettes 53-67 in the NCRS spec guide.
He's talking about the codes on the Posi unit itself, not the codes stamped on the differential housing.
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