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Old 01-17-2011, 03:46 PM   #5
usmcchevy
Has more rust than truck...
 
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Join Date: Apr 2005
Location: Ivanhoe, MN
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Re: WTT: 3 series posi for 4 series posi-12 bolt

Quote:
Originally Posted by darthwall View Post
im not sure but can't you use shims on the 3 series to use the 373's
Don't know, but I am going to try to only swap the carrier and keep my gears like what is being talked about here. So I really should have a 4 series.

http://67-72chevytrucks.com/vboard/s...d.php?t=439159
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