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View Poll Results: which transmission for the R/T?
6 speed 20 30.77%
8 speed 36 55.38%
forget about it and get an 09-12 9 13.85%
Voters: 65. You may not vote on this poll

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  #11  
Old 10-28-2012, 02:48 PM
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Edited...correct info below.

Last edited by UNBROKEN; 10-28-2012 at 04:04 PM.
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  #12  
Old 10-28-2012, 03:20 PM
2010drive 2010drive is offline
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http://www.allpar.com/mopar/transmissions/545RFE.html
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  #13  
Old 10-28-2012, 10:14 PM
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Quote:
Originally Posted by 2010drive View Post
2009-2012 are the exact same transmission. All they did was retune it for 2012 and rename it. It's a 5 speed with a split gear so essentially it's been a 6 speed since 2009
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Originally Posted by jlibert View Post
I'd go with the 6 speed (really 5) if you're going for performance. Assuming the case size is the same dimensions, there will likely be less room to to add more clutches with the 8 speed. That is just a total guess, as I don't know what the specs are on the 8 speed.
That's what I've said all along.

anyway man, call it what you want. 5 speed, 6 speed, whatever. It's the one you'll probably want.
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  #14  
Old 10-29-2012, 10:40 AM
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I'm waiting for the 8-speed. Should be better performance and fuel economy.

Our rep told me to expect them around February or March.
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  #15  
Old 10-31-2012, 07:40 PM
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This will blow all your minds....the 545RFE and 65RFE are actually both 45RFE's which was the 4 speed trans. All chrysler does is change the pcm program and BOOM new gears magically appear. The 545RFE name actually means a 4 speed, 5 torque rating, rear mounted, fully electronic trans with 5 forward gears pretty confusing. The 65RFE is just another computer program. If you take apart a 45RFE and a 65RFE the only difference is the valve body and trans pan.

Also since I've already gotten to take apart an 8 speed trans I can say they are pretty stout. There is only one part about them I don't like, there is an aluminum drum on the out side of the gear train that transfers all the torque coming into the trans to a rear gear set. It brought back memories of the old chevy 700r4 sun shell. But since the company (ZF) that makes the 8 speed has been using it for more than ten years in European cars they've already been tested. The 8 speed will change the game for chrysler, Its an awesome trans, and it doesn't eat up 60-70 hp like the 65RFE does.
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  #16  
Old 11-25-2012, 09:50 AM
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Will we ever get a tuner for the 2012 if they change to 8 speed trans in 2013?
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  #17  
Old 11-25-2012, 04:36 PM
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An 8 speed would be awesome. I had to pull the trigger when I had the wife at the dealer or I may have waited for it
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  #18  
Old 12-28-2012, 04:13 PM
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I didn't think they was putting a 8speed in the R/T. and even if they did it would have that crazy nob-shifter.
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  #19  
Old 12-31-2012, 12:10 PM
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ya f that stupid knob shifter lol go race with that
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  #20  
Old 12-31-2012, 10:01 PM
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am I the only one that likes the knob shifter..?
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