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Here is one I posted when I put the Chevy NV4500 in my '72 Dually, behind a crate 350. I don't know if there is any difference in the later NV4500's or not. No adapter to buy with this method. Just make sure the bolt pattern on your trans is the same as what I used and the hole in the bell housing is the correct size for the front bearing retainer on the trans.....
http://67-72chevytrucks.com/vboard/s...d.php?t=673588
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