C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Decoding a rear end

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Old Jan 31, 2006 | 10:51 PM
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Default Decoding a rear end

Can anyone direct me to a site where I can decode my c4 rear end? I don't know what year c4 this rear end came out of. There's a stamped number on the forward pumpkin mount 41010. The rear cover has a casted number of 40874 and below it 14066827.

Thanks for the help.
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Old Jan 31, 2006 | 11:23 PM
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If you clean the rear and look you should find the manufactured date, gear ratio and other info written on it. It is almost impossible to see this info without cleaning the rear.


Last edited by aboatguy; Jan 31, 2006 at 11:26 PM.
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Old Feb 1, 2006 | 07:23 AM
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Originally Posted by aboatguy
If you clean the rear and look you should find the manufactured date, gear ratio and other info written on it. It is almost impossible to see this info without cleaning the rear.

I have a pic similar to that(BTW, this is a Dana 44)

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Old Feb 1, 2006 | 08:22 AM
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I agree. The rear end is spotless and there is nothing stamped on that area of the rearend???? Just the number on the forward mount 41010??? It's either an 84, 85, 86 so Iv'e been told.
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