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Re: gas mileage .6speed vs 8 speed ram in town? [Re: justinp61] #1685927
10/16/14 06:04 PM 10/16/14 06:04 PM
Joined: Feb 2003
Posts: 8,020
Pangaea
B5 Bee Offline
master
B5 Bee  Offline
master

Joined: Feb 2003
Posts: 8,020
Pangaea
Quote:

My dealer thinks that 3.55s will be available later on the 15s. That's why I haven's ordered one yet.

Gregsrt, how many rpms is your truck turning at 75 with the 3.21 gears? My truck with 3.55s and a six speed turns 1900 or so.



No 3.55 at all or just with the 5.7?
I looked at a base model 1500 Tradesman last week, 3.6, 8speed, reg cab shorty.
Only options were limited slip diff ($375) and 3.55 gears ($50).
Re: gas mileage .6speed vs 8 speed ram in town? [Re: B5 Bee] #1685928
10/16/14 07:03 PM 10/16/14 07:03 PM
Joined: Oct 2003
Posts: 11,684
W. Kentucky
justinp61 Offline
I Live Here
justinp61  Offline
I Live Here

Joined: Oct 2003
Posts: 11,684
W. Kentucky
No 3.55 with the 5.7.
Re: gas mileage .6speed vs 8 speed ram in town? [Re: Pntastar69] #1685929
10/17/14 02:02 PM 10/17/14 02:02 PM
Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
H
HotRodDave Offline
I Live Here
HotRodDave  Offline
I Live Here
H

Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
Quote:

Quote:

As low as 1st gear is in that 8 speed there is no good reason for the 3.92 gears, the 3.21 will get a lot better mpg.



I tow.



1st gear in the 8 speed with a 3.21 gear gives you the same gear multiplication as a 727 with a 6.14 rear gear ratio, I don't see why you would need any more than that especially with all the power these new motors make

I am not causing global warming, I am just trying to hold off a impending Ice Age!
Re: gas mileage .6speed vs 8 speed ram in town? [Re: HotRodDave] #1685930
10/17/14 02:05 PM 10/17/14 02:05 PM
Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
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HotRodDave Offline
I Live Here
HotRodDave  Offline
I Live Here
H

Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
Oh and for the mathmatically challenged the 3.92/8 speed 1st is like having a 7.50 rear gear and a 727, just seems like way over kill to me and that don't even consider how much better converters are now

I am not causing global warming, I am just trying to hold off a impending Ice Age!
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