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Old 05-30-2006, 10:10 AM   #1
roughedup72
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Join Date: Oct 2005
Location: south carolina
Posts: 658
How fast am I really going

I just installed a 3.73 posi rearend in my truck and now my speedo is off but I'm not sure by how much. I'm running 285/70/15's and the 3.73, The tranny is a th350, anybody got any Ideas, and how do I get it correct? Thanks in advance.
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1972 chevy cheyenne 10,nothing special at the moment,Its a work in progress, Working on the engine, paint and body,engine, paint and body,now its the suspenion, ahh hell I'm about tired of working on it. Maybe it will be a rat rod.
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