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Discussion Starter · #1 ·
Hey, I've a 67 Impala and i'm wondering what gear ratio I have in the 12 bolt axle. I tried searching, but gave up after no luck. There's Camaro, Chevelle, Nova casting numbers everywhere, but none for my Impala. i believe the ratio letters (first two in the sequence) are EM, but i could be mistaken. Any help? Thanks, Jake
 

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Discussion Starter · #3 ·
thanks for the help :) if you have an open diff, be sure to double the number for your findings. i got 1.75 the first time around, and on other muscle car forums they said to double it, and got 3.5. thanks for the input,
Jake Engel
 
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