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Old 03-25-2019, 06:41 PM
'ol Pinion head 'ol Pinion head is offline
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Join Date: Apr 2000
Location: INJUN Territory, Red State Merica!
Posts: 9,875
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'68 "Chevelle" 12 bolts used the "124" casting center housings.
"038" casting 12bolt "chevelle" housing was used in '69 models. Malibus, Elco's, Chevelles, as well as '69 cast McKinnion c-clip axle A-body 12 bolt rears used in a few '69 Olds & Buick A-bodys. A very few late '69 production "038" casting 12 bolt rears ended up in very early '70 models, from what Ive pulled those were typically 2.73 single tracks.

Original axle tube stamping

CI 06 10 B

CI = 3.73 posi traction
06 = 6 month, June of '69
10 = 10th day
B = Buffalo diff plant

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