I have found a possiable canidate 12 bolt diff for my 1969 396 Camaro but need help in identifying the numbers, casting 3894860NF,
date 8110 or 0118 (upsidedown) BL0820 (on Tube) 12345, GM58, 67690 these are all the numbers off of the center section of the diff. http://www.camaros.net/forum/cool.gif http://www.camaros.net/forum/cool.gif


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Barry
70 1/2 RS Z-28
69 Z-28 Crossram
69 RS SS 396 Convert
69 RS ProStreet 638 G.M.
70 LS6 Chevelle

3:07 non-posi 12 bolt, built Aug 20th.
Casting date should be (letter)(day)(single digit year). So something isn't right there. http://www.camaros.net/forum/smile.gif
Casting # is correct for a 68-9 12 bolt. http://www.camaros.org/numbers.shtml#RearAxleNumbers

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Kurt S.
CRG www.camaros.org (http://www.camaros.org)