03-06-2020, 12:49 AM
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Senior Member
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Join Date: Mar 2017
Location: ABQ, New Mexico
Posts: 36,633
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It wasn't until 1969 that Chrysler began to offer factory installed 4.10 gears in it's muscle cars via the new Super Performance Axle Package (A32) and Super Track Pak (A34). Previous to 1969 you could get a 4.10 or 4.56 rear but it was dealer installed only.
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