Aisen Auto specs

[Ross]

I have some questions for those of you "in the know. "



Does anyone have the gear ratios for the new Aisen 6-speed auto? I have heard that the last to holes are OD. Is that true?



What weight is the transmission rated at?



Also, is it a planetary auto like the Allison and Furds new 5 speed?



Finally, when will these engines hit the streets?



Thanks for any replies.

 

[raychem]

I think that in issue 51 or 52 thay talk about the 3500 chassis cab, It will include the 6. 7 with the Asasin Wanner unit ( A68FE if I remember correctly some one correct me if I am wrong). The regular 2500/3500 that we have today will also come with the 6. 7 but they will use a 68RFE... not the asasin unit from the chassis cab from what I have read.

 

[vciesielski]

here is the press release info

https://www.turbodieselregister.com/forums/showthread.php?t=165926&highlight=press

 

[KCJackson]

Aisin AS68RC ratios:

1 - 3. 74:1

2 - 1. 96:1

3 - 1. 34:1

4 - 1. 00:1

5 - 0. 77:1

6 - 0. 63:1

R - 3. 54:1



The chassis-cabs are rated to the same 23,000 lb GCWR as the pickups.



The Mopar 68RFE that will be used in pickups starting in January is a planetary (like its sisters, the 45RFE/545RFE); the Aisin AS68RC is a traditional gearset with electronic lockup and OD control like the Mopar 47RE/48RE.



Chassis/cab production began this month, so you will see this trans very shortly.

 

[zstroken]

I am confused, the 47/48RE use planetaries also.

 

[nickleinonen]

The Mopar 68RFE that will be used in pickups starting in January is a planetary (like its sisters, the 45RFE/545RFE); the Aisin AS68RC is a traditional gearset with electronic lockup and OD control like the Mopar 47RE/48RE.

um, the aisin looking at the pictures has planetaries in it too. . very few automatic or powershift transmissions have countershaft gears. [some clark powershift transmissions have countershafts, but they are big ones weighing well past the 1ton mark]

 

[KCJackson]

Sorry about the confusion... the RFE Mopars are triple-planetary (three sets).

 

[Ross]

You guys are right, all the Mopar trannies are planetary, as are GM's and most others. Sorry for the cornfusion...



Lots of good information, but some I've found today conflicts and presents the next question:



Will Dodge use both the Aisin 6sp and the new 68RFE in the 3/4 and 1 ton trucks? From what I can tell, the Aisin will be used only in the HD chassis cab models, and the 68RFE will be used in the "lighter" 3/4 and 1 ton versions. Can anyone confirm this? TOMMYGUN? Also, when will these things be hittin' the streets? I need to buy a truck pretty quick, but the 6 speed sounds mighty nice, however, I'm not too excited about having it mated to the 6. 7L engine with all the new smog gagetry. I've been a guinea pig before and didn't like it. (Yes, I owned a 6. 2 chevy, don't rub it in)

 

[KCJackson]

You guys are right, all the Mopar trannies are planetary, as are GM's and most others. Sorry for the cornfusion...



Lots of good information, but some I've found today conflicts and presents the next question:



Will Dodge use both the Aisin 6sp and the new 68RFE in the 3/4 and 1 ton trucks? From what I can tell, the Aisin will be used only in the HD chassis cab models, and the 68RFE will be used in the "lighter" 3/4 and 1 ton versions. Can anyone confirm this? TOMMYGUN? Also, when will these things be hittin' the streets? I need to buy a truck pretty quick, but the 6 speed sounds mighty nice, however, I'm not too excited about having it mated to the 6. 7L engine with all the new smog gagetry. I've been a guinea pig before and didn't like it. (Yes, I owned a 6. 2 chevy, don't rub it in)

Aisin is strictly chassis-cab, 68RFE is strictly pickups, according to the DC 2007 press kit, released September 1. The 6. 7/Aisin and 6. 7/G56 powertrains are available immediately in the chassis-cabs. The 6. 7/68RFE and 6. 7/G56 for pickups will begin production January 8 2007.

 

[Punkineater]

The November issue of Diesel Power states that effective January 07 you will be able to option the new 6. 7L Cummins with the Aisin automatic transmission in all 3/4 and 1 ton trucks including the Mega Cab. The motor is spec'd at 350 HP at 3013 RPM and 650 lb-ft of torque at 1500 RPM.

 

[KCJackson]

The November issue of Diesel Power states that effective January 07 you will be able to option the new 6. 7L Cummins with the Aisin automatic transmission in all 3/4 and 1 ton trucks including the Mega Cab. The motor is spec'd at 350 HP at 3013 RPM and 650 lb-ft of torque at 1500 RPM.

DP is not correct about the transmission. TDR has the official DaimlerChrysler spec sheet PDF - the transmissions are on page 10: https://www.turbodieselregister.com/07pressrelease/Dodge_2_PR.pdf



I have the separate spec sheet for the chassis-cab (attached) and it clearly mentions the Aisin AS68RC, while the pickup sheet refers to the 68RFE. They have totally different gear ratios.

 

[nickleinonen]

:-laf:-laf:-laf...



download that pdf file and go to page 14. . look at the code for the g56 trans. . someone over at dc thinks their funny [ _ _ _G56 6-spd. MANU (DEG)]

 

[GAllen]

DP is not correct about the transmission. TDR has the official DaimlerChrysler spec sheet PDF - the transmissions are on page 10: https://www.turbodieselregister.com/07pressrelease/Dodge_2_PR.pdf



I have the separate spec sheet for the chassis-cab (attached) and it clearly mentions the Aisin AS68RC, while the pickup sheet refers to the 68RFE. They have totally different gear ratios.

Regardless of what it's called it's not realistic to think they'd build two 6 speed auto's for nearly the same market. The same transmission with different ratios and names, depending on application, would be reasonable and financially practical. We haven't had a new transmission since the 727, I doubt we'll be getting two in one year.

 

[Steve St.Laurent]

They are VERY different trannies that have nothing in common - they are from completely different vendors. If you looked at both side by side you'd have no doubt of that.

 

[FPettijohn]

DCX and the UAW are in some challenging negotiations on North American vehicles and what transmissions are going to be used. "It ain't over till the fat lady sings" and she has not even stepped to the microphone.

Fred.

2004. 5 qclb, quadzilla xzt, autometer post gauges, AFE air cleaner.

unbelievable mpg (down hill in a tail wind) :-laf

 

[EMD-Run8]

I think the reason that the Aisin AS68RC will be available in the chassis cabs only is because it is PTO equipped. The 68RFE is not. My guess is that from a marketing standpoint, Dodge wanted that capability for its new "job rated" chassis cab platform. Also, it is a $2200 option! I'll be very interested to see how the Aisin performs compared to the 68RFE. And yes... ... PTO would be very nice!

 

[KCJackson]

:-laf:-laf:-laf...



download that pdf file and go to page 14. . look at the code for the g56 trans. . someone over at dc thinks their funny [ _ _ _G56 6-spd. MANU (DEG)]

That was in the 06 press kit too, and I did a double take then... because I had the exact same thought :-laf

 

[backroad]

I'd been a whole bunch more comfortable if they were going to use the Allison World 6 speed auto. I've got one in my motorhome and it's awesome.

 

[klenger]

OK, I added the Asian 6 speed trans to my world famous Excel Gear Ratio Worksheet. You can see the Excel version at http://www.klenger.net/dodge/general-reference/gear-speed-calculator.xls and I have a pdf copy at http://www.klenger.net/dodge/general-reference/gear-speed-calculator.pdf. I've also attached the Asian page to this post below.



#ad




After comparing the ratio vs vehicle speeds, it looks like this would be a sweet towing trans with the 4. 10's. Because the auto doesn't need the granny low because of the TC, you get a really nice spread of useful gears for towing or empty.



If anyone has the ratios for the DC 68RE, I'll add them to the worksheet too.

 

[KCJackson]

If anyone has the ratios for the DC 68RE, I'll add them to the worksheet too.

First post in this thread: https://www.turbodieselregister.com/forums/showthread.php?t=165926