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Old 11-27-2016, 08:52 PM   #52
garyd1961
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Join Date: May 2016
Location: Henderson NC
Posts: 975
Re: Rear Axle Ratio Charts For 1967 - 1972 GM Trucks

Quote:
Originally Posted by LockDoc View Post
Use a floor jack and lift both rear tires off the ground. Spin one tire. If both tires turn the same direction you have posi if one tire moves forward and one backward you have an open rear end.

LockDoc
The rear isn't in my truck but it turns one axle opposite of the other. I know it's an open rear now and I have been looking at an Eaton Truetrac. I plan to put the open rear in for now and to rebuild the one I'm taking out latter.
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