Excellent information, Will. I should be all set with the ratios as I think
I'm going to go with the 4.7 with the 45RFE (or should I say that the Mrs.
is ;-)
Thank you very much ;-)
Chuck Robbins
'99 Dakota Sport
www.intense99dak.com
> Chuck, the 45RFE is the same transmission that is used in 4.7L powered
> Dakotas and Durangos. It is an automatic overdrive that has 5 forward
gears,
> one of them being a "2nd over". Basically it has 2 different 2nd gear
> ratios- one for accelerating(lower for better acceleration) and one for
> kick-down or passing(higher so as not to make the RPM's jump as high when
it
> is kicked down). The 46RE is the same old A727-based 4-speed overdrive
that
> was also called the A518 and 46RH. It is the same transmission that is
used
> in the Dakota R/T and the 360 powered quad cabs and Durangos.The 45RFE is
> pretty highly revered and has a descent approval rating right now. There
has
> been a few cases of them jumping to another valve body postion without
> warning, but it is not a common problem. The 46RE's are just as they have
> been-lazy shifts, lack of refinement,etc. It's based on a design that's
> almost 40 years old! Need to know the ratios or anything else??
>
> Will Coughlin willcoughlin@hotmail.com
> '00 Reg. cab 2wd, 4.7L/NV3500HD/9.25" 3.92 sure-grip
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