James G. Posted May 13, 2011 Share Posted May 13, 2011 Here are the numbers from the rear end in my 72 Monte: L K B 1 5 2 2 From what I have, I believe my 10 bolt rear end has 2.56 gears (ugh), made in the Buick plant, on 2nd shift, and is an open rear end. Does this sound about right to you guys? Thanks. Also, I did not find the "LKB" code listed for 71-72 Monte's, but did find it on a Buick website listing other A-frame cars and their rear end codes (including Monte's), so maybe we could add this one to the Tech Info section? -James Quote Link to comment Share on other sites More sharing options...
Boz Posted May 18, 2011 Share Posted May 18, 2011 Yeah everything I have found is LK is 2.56 open rear and B is for Buick. It should be a 8.5 rear so posi's are easier to find. My Chevelle has the same gears in it but is a 8.2. Quote Link to comment Share on other sites More sharing options...
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