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Old 12-01-2011, 06:06 PM   #5
76chevytruck
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Join Date: Aug 2011
Location: Kempton, In
Posts: 9
Re: 4x4 trans swap th350 to 700r4

karl
I agree that the th400 would be the quickest/easist swap and be almost indestructable, however i'm really looking for that 4th gear to help improve my mpg hopefully above 15 depending on tire height/gear ratio of course. The4L80E is a great choice but correct me if i'm wrong won't i need a stand alone computer to manage the shift points? Can i hook up a np205? or will i need to go to something newer? If it needs a stand alone computer what does it take to program and more importantly maintain. thats why i was thinking 700r4. who would you recommend for the computer?
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