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05-27-2013, 10:25 PM
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#1 |
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Registered User
Join Date: Jun 2011
Location: Vancouver, WA
Posts: 92
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4 speed with granny low to automatic
Thinking of changing my 65 c20 with 4.56 gears and granny 4 speed to an auto. Which is better and easier? 700 r4 or 200 4r?
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Grandpa's 1965 Chevrolet C20 in the family since new |
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05-28-2013, 01:52 PM
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#2 |
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Registered User
Join Date: Jun 2011
Location: Vancouver, WA
Posts: 92
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Re: 4 speed with granny low to automatic
Also wondering if a TH350 might be better, although there is no OD. I really want this truck to be more civilized on the highway.
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Grandpa's 1965 Chevrolet C20 in the family since new |
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05-28-2013, 03:46 PM
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#3 |
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Registered User
Join Date: Sep 2012
Location: Dallas, GA
Posts: 1,497
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Re: 4 speed with granny low to automatic
What about 4.10 gears? TH350/TH400 will only spin faster, as it never locks up, always slipping. I am not a very big fan of the R4's and 4L60's.
Personally, I think the 4.10's are fine. With the tall (33.5") tires on my truck, 60MPH is only 2,500RPM. With a modern radial 235/85R16, it will be about 2,700RPM at the same. Also, you might consider an NV4500 five speed manual. |
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