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Old 06-10-2012, 09:03 PM   #16
Edahall
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Join Date: May 2011
Location: Goliad, TX
Posts: 672
Re: Got a 6.2 diseasal... should I put a 700r4 or a Turbo400 behind it?

Quote:
Originally Posted by Firebirdjones View Post
I agree completely. The only nice thing I can think of with the 700 is the 3.06 first gear and a 1.62 second, which still makes taking off nice even if you run a 3.08 rear gear. So you can still cruise in 3rd at a reasonable rpm for towing,,,,just as you mentioned.
Exactly...... I've tried 3.73's and 3.43's but ultimately, 3.08's ended up working the best. It does fine towing my 26ft Airstream trailer in 3rd gear and unloaded, I can go as fast as I want in overdrive and enjoy good fuel economy. Another nice thing about 3.08's is I can tow going up a grade at 50-55 mph in 2nd gear.
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1990 ¾ ton 4x4 Chevy Suburban
-Cummins Diesel - 12 valve - factory rebuilt
-6 speed bullet proof manual transmission - NV5600
-Gear Vendors Overdrive - HX35 Holset Turbo
-NP205 iron transfer case
-3.73 gears -2" Lift
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