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Old 05-15-2011, 04:10 PM   #1
STOCKISH
Formerly- 1972SuperCheyenne
 
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Join Date: Oct 2008
Location: Wake Forest NC
Posts: 5,782
6.2 manual to auto swap

I am changing the sm 465 in my crew cab to an automatic. It has 35 inch tires and 4.10 gears. Will i be okay with a turbo 400 or do I need an overdrive to be able to run happily at 70 miles an hour on the interstate? I don't want to over rev the 6.2 diesel to the point where I am hurting it or killing my gas mileage. Anyone who has experience with these please help me out. Does anyone know what is the optimal
cruising rpm for the 6.2 diesel? Thank you guys for all your help ahead of time.
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