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Old 05-29-2006, 02:18 PM
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Please won't ya Hep me ID my rear end.

I took a ride to the bone yard and retrieved a rear end from a camaro but too many parts (of the car) were removed to ID it. It does not have a tag attached to the cover, however I have some numbers from the housing which may help. Bottom right side of the pumpkin is GM 21, bottom left has 1249512 with the letter N centered above. Left front of pumpkin is L175. Thanks for the ID help.

Al

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Last edited by Gr8 '48 bow tie; 05-29-2006 at 03:48 PM.
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Old 05-29-2006, 04:11 PM
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Al, This ain't much but,the L175 is a date code of when that part was cast. GM uses it alot. The 'L' being the month A-Jan B-Feb and so on. The 17 is the day. The 5 is the last number of the year. Dec 17th either 65,75,85,etc I know that doesn't help much for your rear but, that system is used on most GM castings Heads, blocks etc.
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Old 05-31-2006, 10:14 PM
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What year Camaro? If it was a '75 Camaro, it should be an 8.5" 10-bolt.
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Old 06-01-2006, 08:37 PM
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Here is the story on the camaro rear end. I am building a 1948 Chevrolet, it is stripped to the bare bones. The chassis is awaiting rear leaf spring bushings, after which I will install a Camaro rear end that I retrieved from a salvage yard. the description is in the post. I know it is a Camaro 10 bolt, but that is all I know. I thought the casing numbers might give a clue as to what year and ratio it is.

Al
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Old 06-01-2006, 09:06 PM
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See if this helps any: http://www.oldsmobility.com/10bolt-tech.htm

Scroll down for rear cover pics.
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Old 06-01-2006, 10:11 PM
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Thanks Jim, I believe I may be able to figure it out with the data you sent. I will copy all the info and check it out the first thing tomorrow morning. Again I say thanks.

Al
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Old 06-03-2006, 10:36 PM
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I checked the configuration of the plates and numbers. Everything points to '75 Camaro 10 bolt, 8.50 ring gear, 3.08 ratio. The 250 inline backed up with the TH350 should give me a decent cruising range with fairly good fuel economy. If by chance I can locate a 200R4 before I get it all back together again, I believe that would be soooo much better soooooo heeeres hoping.

Al

Last edited by Gr8 '48 bow tie; 06-03-2006 at 10:44 PM.
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