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Old 03-03-2013, 12:50 AM
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5 speed vs 6 speed, which is faster/more responsive?

Okay, not to start a war but anyone that drove both the 5 speed 2011 or 6 speed 2012 have any opinion? I guess that basically they are kind of the same with not as much of an extra gear as more of a 1,2a,2b,3,4,5 for the 2012 as opposed to a real 6 gears.


I test drove the 2012 today and felt it was a bit sluggish, but not sure if it's just me or not. Anyone?
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Old 03-03-2013, 01:02 AM
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Re: 5 speed vs 6 speed, which is faster/more responsive?

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Originally Posted by Keirik View Post
Okay, not to start a war but anyone that drove both the 5 speed 2011 or 6 speed 2012 have any opinion? I guess that basically they are kind of the same with not as much of an extra gear as more of a 1,2a,2b,3,4,5 for the 2012 as opposed to a real 6 gears.


I test drove the 2012 today and felt it was a bit sluggish, but not sure if it's just me or not. Anyone?
They're both dogs...buy a 2014
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Old 03-03-2013, 01:04 AM
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Re: 5 speed vs 6 speed, which is faster/more responsive?

I don't like the looks at all of a 2014. Sorry. Thanks though.
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Old 03-03-2013, 01:34 AM
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Re: 5 speed vs 6 speed, which is faster/more responsive?

Someone correct me if I'm wrong, but the 6 speed doesn't shift like a 6 speed. It uses only 5 gears, and selects the proper 2nd gear ratio based upon load, throttle position, speed, and a few other parameters. With that, I would think they would perform close to the same, since they both shift and act like a 5 speed trans. One just has the ability to alter its second gear ratio if and when needed.
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Old 03-03-2013, 07:14 AM
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Re: 5 speed vs 6 speed, which is faster/more responsive?

I will agree on the sluggishness of the older transmissions on the V6. Alot of people have stated this same thing on the 2011-2013 models. I don't think your trying to start anything big by asking this, people will still buy those models if they can. The transmission will learn but how much truly, I don't know.
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Old 03-03-2013, 07:35 AM
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Re: 5 speed vs 6 speed, which is faster/more responsive?

If OP is talking about a 6spd, isn't he driving a Hemi?



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Old 03-03-2013, 09:30 AM
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Re: 5 speed vs 6 speed, which is faster/more responsive?

The 5 speed (545RFE) and the 6 speed (65RFE) are the same transmission with the exact same gear ratios. They started calling it a 6 speed for marketing purposes. It only uses 5 forward gears at any time. When in tow/haul, it uses 2nd prime as an up shift gear, at least it does in the Ram.
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Old 03-03-2013, 09:56 AM
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Re: 5 speed vs 6 speed, which is faster/more responsive?

If it only uses 5 of 6 gears, prove it.
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Old 03-03-2013, 10:00 AM
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Re: 5 speed vs 6 speed, which is faster/more responsive?

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Originally Posted by jgc4ever View Post
If it only uses 5 of 6 gears, prove it.
It's been documented over and over. If you doubt it, Google should help you find the info you are looking for.



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Old 03-03-2013, 10:17 AM
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Re: 5 speed vs 6 speed, which is faster/more responsive?

OK, from Wikipedia (no source though):

For the 2012 model year, the 545RFE was recalibrated and introduced as the 65RFE in 1500 Ram models. With the exception of an improved torque converter, it is physically the same as its predecessor. The key difference in the 65RFE is the ability to use all six forward gears in sequence when using Electronic Range Select mode. In normal drive mode, however, the 65RFE uses the shift pattern of the 545RFE; thus never using 2nd and 3rd gears in succession. 2500 and 3500 models with gas engines received the 66RFE, a hybrid of 68RFE internals (including the gearset) packaged in a 545RFE case.

Gear Ratios:
  • 65RFE
    • 1st 3.00:1
    • 2nd 1.67:1
    • 3rd 1.50:1
    • 4th 1.00:1
    • 5th 0.75:1
    • 6th 0.67:1
    • Reverse 3.00:1
  • 66RFE
    • 1st 3.231:1
    • 2nd 1.837:1
    • 3rd 1.410:1
    • 4th 1.000:1
    • 5th 0.816:1
    • 6th 0.625:1
    • Reverse 4.444:1
So at least it has a better ratio for gas mileage in 6th gear (and 5th gear), and I can shift through all 6 gears. I'm happy with the 6-speed in mine.
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Old 03-03-2013, 10:38 AM
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Re: 5 speed vs 6 speed, which is faster/more responsive?

Quote:
Originally Posted by jgc4ever View Post
OK, from Wikipedia (no source though):

For the 2012 model year, the 545RFE was recalibrated and introduced as the 65RFE in 1500 Ram models. With the exception of an improved torque converter, it is physically the same as its predecessor. The key difference in the 65RFE is the ability to use all six forward gears in sequence when using Electronic Range Select mode. In normal drive mode, however, the 65RFE uses the shift pattern of the 545RFE; thus never using 2nd and 3rd gears in succession. 2500 and 3500 models with gas engines received the 66RFE, a hybrid of 68RFE internals (including the gearset) packaged in a 545RFE case.

Gear Ratios:
  • 65RFE
    • 1st 3.00:1
    • 2nd 1.67:1
    • 3rd 1.50:1
    • 4th 1.00:1
    • 5th 0.75:1
    • 6th 0.67:1
    • Reverse 3.00:1
  • 66RFE
    • 1st 3.231:1
    • 2nd 1.837:1
    • 3rd 1.410:1
    • 4th 1.000:1
    • 5th 0.816:1
    • 6th 0.625:1
    • Reverse 4.444:1
So at least it has a better ratio for gas mileage in 6th gear (and 5th gear), and I can shift through all 6 gears. I'm happy with the 6-speed in mine.
You don't have the 66RFE, you have the 65RFE. I have the 66RFE in my Ram 2500 and it's a completely different animal.
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Old 03-03-2013, 11:29 AM
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Re: 5 speed vs 6 speed, which is faster/more responsive?

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Originally Posted by myoung84 View Post
You don't have the 66RFE, you have the 65RFE. I have the 66RFE in my Ram 2500 and it's a completely different animal.
OK, thanks for letting me know that.
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