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Re: 72 suburban with a duramax (the build)
When i first put it together i was running a 3:08 in the 12 bolt then i went to a dana 60 and now running a 3:55 gear the 3:08 was a little tall and the 3:55 is a little deep but was the tallest gear i could get for the 60. I wanted a 3:42.
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