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05-17-2009, 01:39 PM
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#1 |
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Registered User
Join Date: Apr 2009
Location: Valley Center, Ca.
Posts: 37
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Re: Differential, Transmission & Motor Combo Opinions Needed
I have run a 350/700R4 w/3.42 posi for well over 100000 miles. I pull hills, Zip down the Freeway and tow heavy (14' enclosed & Car trailer) @ 70mph it would tach about 2400rpm w/26" tall tire(295/35R17). It gives you an all around use. 700R4 gives you a 5% lower 1st & 2nd gear over a TH350/TH400.
Although a TH350 w/3.07 would be the less expensive, it is all what you want to spend. A quality 700R4 will set you back 1800.00+ now days. I purchased mine from the Toy Shop. I have used 4 of these for different friends rides, all are still in service. Quality Fluid & Coolers are a Must! I use a Hydrotex HytorqueZ and a B&M Super Cooler, routed thru the Radiator cooler then thru the external cooler. But it all comes down to the $$$$$$$$ you want to spend. 
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05-17-2009, 01:47 PM
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#2 |
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Formerly- 1972SuperCheyenne
 
Join Date: Oct 2008
Location: Wake Forest NC
Posts: 5,782
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Re: Differential, Transmission & Motor Combo Opinions Needed
I love a 700r4 and 3.73 combo. Great all around combo.
__________________
--Josh My Build Thread:http://67-72chevytrucks.com/vboard/s...d.php?t=799218 A good crossthread is better than Loctite any day. Life is not about what you have, but who you have to share it with. |
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05-17-2009, 08:17 PM
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#3 |
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newbie
Join Date: Feb 2009
Location: Wise Virginia
Posts: 122
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Re: Differential, Transmission & Motor Combo Opinions Needed
whats the best diff for gas mileage?
Last edited by dga93; 05-17-2009 at 08:17 PM. |
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