1968 Dana 60 with 4.10:1 gears?
#29665
09/17/06 11:58 PM
09/17/06 11:58 PM
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Joined: Jun 2005
Posts: 2,489
Tracy, New Brunswick, Canada
magnumcharger
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Tracy, New Brunswick, Canada
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I've got a Dana 60 for my 1968 Charger R/T. When I bought it, I had no idea what it might have been out of. All I know is that it had 4.10 gears. Recently I decoded the numbers on the axle tube and was pleasantly surprised to find that it came out of a 1968 B body. The questions are: What cars came with an optional 4.10 gearset? I thought 3.54 was all you could get in 1968? 
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Re: 1968 Dana 60 with 4.10:1 gears?
[Re: earlybee]
#29669
09/18/06 12:58 AM
09/18/06 12:58 AM
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Joined: Jun 2005
Posts: 2,489
Tracy, New Brunswick, Canada
magnumcharger
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OP
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Joined: Jun 2005
Posts: 2,489
Tracy, New Brunswick, Canada
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According to: http://www.autohobbydigest.com/dana.html"Specifications and Applications" All Dana 60 housings are marked with a "Bill of Materials" number and a date code. All Dana 60 differentials are also marked with a date code which are found on both housing, inboard of the BoM number, and on the side of the cylindrical part of the differential. Formatted "MM DD Y", the date code always represents the year as a single digit, except on differentials which can be two digits. Housing date codes are followed by a letter (A, B, or C) which may indicate the work shift or factory line. Some differential stampings also show this letter suffix. Zeros are not used in month and day codes. Wide variation in spacing of the components of the date code is seen, and it is not unheard of to see two date codes stamped into a housing, one above the other. These two date codes are usually within a few weeks of one another. My Date code is 12 - 4 - 8-C, or Dec 4 1968...so I suppose it was built in 1968 for a 1969 year vehicle. That explains it, I guess. 
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Re: 1968 Dana 60 with 4.10:1 gears?
[Re: magnumcharger]
#29671
06/18/08 05:15 PM
06/18/08 05:15 PM
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Joined: Jan 2003
Posts: 75,005
U.S.S.A.
JohnRR
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I Win
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Quote:
According to:
http://www.autohobbydigest.com/dana.html
"Specifications and Applications"
All Dana 60 housings are marked with a "Bill of Materials" number and a date code. All Dana 60 differentials are also marked with a date code which are found on both housing, inboard of the BoM number, and on the side of the cylindrical part of the differential. Formatted "MM DD Y", the date code always represents the year as a single digit, except on differentials which can be two digits. Housing date codes are followed by a letter (A, B, or C) which may indicate the work shift or factory line. Some differential stampings also show this letter suffix. Zeros are not used in month and day codes. Wide variation in spacing of the components of the date code is seen, and it is not unheard of to see two date codes stamped into a housing, one above the other. These two date codes are usually within a few weeks of one another.
My Date code is 12 - 4 - 8-C, or Dec 4 1968...so I suppose it was built in 1968 for a 1969 year vehicle.
That explains it, I guess.
considering 1969 model year assembly began in august of 1968 that would be a pretty safe assumption ...
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