66 Impala rear differential decoding - Impala Tech
Transmission & Driveline Transmissions & Differentials

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post #1 of 2 (permalink) Old 07-07-2020, 02:44 AM Thread Starter
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66 Impala rear differential decoding

Hello everyone I was wondering if someone can decode a differential I want to purchase but not sure if It is really a posi as seller stated here are the markings/codes as follows: DD0127G on tube, A188 on Housing and 3862689 on the ring gear please Help THANK YOU!!
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post #2 of 2 (permalink) Old 07-07-2020, 08:27 AM
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See Warrenís page:


All the 66 and later DD codes are 3.31 non-posi rears



1966 Impala SS

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