Thread: 1972 K10 Rear Axle Seats
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Old 11-21-2016, 10:01 PM   #5
WPPT
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Join Date: Oct 2016
Location: Nashville, TN
Posts: 15
Re: 1972 K10 Rear Axle Seats
Can see the GM 57 on the rear diff. It is a 12 bolt. What does the GM 57 mean?
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1972 K10 w/350 & 6" lift
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