2005- last year for the NV5600?

[johnrv4]

I was just looking at a different website, and it states that the NV5600 will be replaced with a new 6 speed in the late '05 model year. The new transmission is designated as a G56, and will feature an all-aluminum case with integral bellhousing, and have a 6. 29 first gear ratio. The story can be accessed from here:www.media.daimlerchrysler.com. Enter the website and look under the "Chrysler Group" heading. Full story is there.

 

[MCrossley]

YUP Getrag transmission from here on in is my understanding

 

[Jeff_K]

From the article...



Six-speed manual transmission performance will be available with the 5. 7-liter HEMI V-8, in addition to the High Output Cummins Turbo Diesel, on 2005 Dodge Ram Heavy Duty pickups. The G56 six-speed manual transmission replaces the NV4500 five-speed and NV5600 six-speed manual transmissions. This new six-speed transmission features a dual-trunnion shift tower which provides a compact shift pattern with optimal mechanical advantage for shifting. Double-cone synchronizers in First through Fourth and Reverse gears provide high-capacity and long-term durability. A two-piece, die-cast aluminum case with an integral clutch housing provides optimal stiffness and minimizes noise, vibration and harshness. A multi-rail, all-steel shift system provides precise shift feel. The 6. 29:1 First-gear ratio provides better launch performance for an improved experience under heavily loaded and trailer tow conditions. There are also power take off access covers on both sides of the transmission.

 

[DPelletier]

The new transmission is going to have some BIG shoes to fill. Hopefully it'll be good although I'm not fussy about the aluminum case. And what is with a lower 1st gear? I don't use first now unless I'm over 12,000 GCVW.

 

[rbattelle]

Wow. I can't believe they're replacing the venerable 5600. For future buyers, I just hope they don't use a concentric slave cylinder mounted on the input shaft!



Perhaps the NV5600 is at it's limit? NV's website says maximum input torque is 560 ft-lb, so maybe the Getrag is heavier-duty?

 

[swexlin]

First Dana axles, now New Venture transmissions. Ah, progress??



I'm sure there are 1st Gen owners who shudder at the name Getrag. :-{}

 

[opjohnny]

It is reverse that could stand to be lower. Now if they made that 6. 29 that would be and improvment. I stopped doing that rockford files move along time ago, so I don't need on ramp speed in reverse.

 

[PJereb]

Everybody should bombard the two contacts in the DC article with carefully written letters explaining why they have made a mistake (I already sent an email). What in the hell are they trying to do with the Ram HD pickups, make them into Hondas? Make sure you log in as a guest to the DC media page and send off some emails!





Peter

 

[rbattelle]

I won't condemn them for the change until it happens and we find out whether it's a change for the better.

 

[PJereb]

First gens had the Getrag 360.



Now they are going to use the new Getrag 370.



Couldn't they at least name it something different? :--)













I know, it may be the best thing since sliced bread, but I have my doubts. Getrag makes a lot of transmissions, for a lot of different automakers (BMW& many others), but the 360 was so weak, it really worries me, I really think that DC may be trying to refine their pickup line, but a Cummins will destroy most refined things. The Engineers have probably been brainwashed by all the consumer reports crap, and now they are trying to make a pickup that is really a small truck shift like a Honda civic. Also, who knows how the different manufactures rate their transmissions, maybe Getrag claims that their unit will hold up to 700 ft/lbs, but for how long???

 

[PJereb]

Whoops... . I mis-read the article!



The Liberty and Wrangler will have the Getrag 370, The CTD will have the G56.



Feeling slow….



Peter

 

[klenger]

So, is this a good thing or bad? Sounds like most of you don't like the idea.

 

[robert4570]

I suspect cost is the driving factor in all the changes . I was dissapointed when Dana was dropped .



99 3500 DRW AUTO 2WD 34K



05' 3500 DRW 6SPD ON ORDER CAN'T WAIT.

 

[KCJackson]

The 05 specs are out, and across the board, the Cummins/48RE is rated at a higher GTW than the Cummins/NV5600 for one reason and one reason only: the heavy iron case of the manual. Since the Getrag G56 has an aluminum case, the truck will be able to have both higher payload and higher trailer weight ratings. Using the G56 for both the Hemi and Cummins also saves money in production costs, since only one manual trans has to be stocked.



Another thing to note is, there has been a preliminary announcement that the Duramax/Allison combo is now rated at 310/605 for 2005, taking the torque lead (but only for automatics). With the scheduled freshening of the Ram for MY2006 and the likely need for increased power to move the larger MegaCab trucks, my own speculation is that the 06 Cummins will be rated at 340/625 if it's still 5. 9 liters, and 350/650 if Cummins offers the stroked 6. 7 liter B-series. The G56 may be in place with that in mind, and the rumored 58/59RE will also likely surface to handle more power.

 

[DPelletier]

So, is this a good thing or bad? Sounds like most of you don't like the idea.

Well Ken,

We won't know until it happens, BUT why would anyone want the NV-5600 replaced? Let's see... . we have a really good transmission now, let's try something else!

As far as the NV-5600 being at its torque limit, I say HA! I STILL haven't heard of even ONE power related NV-5600 failure. I don't know where the limits of the NV-5600 are, but they are far above what the Cummins produces now or is likely to in the forseeable future.

No, I'm afraid it's either driven by cost or the complaints from people not used to the characteristics of a truly HD transmission. Or both.

Oh, Well. Not planning on buying another new one quite yet.



Dave

 

[Vaughn MacKenzie]

I think KC makes a good point. . . weight savings. Since the 3rd Gens have packed on some weight and the Cummins engine itself has gained about 200 lbs over the 12-valve I know the engineers are looking to save some weight somewhere. Vaughn

 

[klenger]

I heard a month or so ago on the TDR (maybe from TommyGun) that the 2005 6-speed has a different order code. I asked if it was still the NV-5600, and he responded that it was. Interesting that they are changing the order code if it's the last year for the NV-5600.



I think it's interesting that the NV-5600 is no longer listed on the New Venture website, and has not been listed for some time. I suspect the change for Dodge is more cost driven than anything else. Based on my very limited knowledge of the compitition, I think the Dodge with the CTD/NV-5600 combo is the best light truck for someone who prefers to row the gears.

 

[nickleinonen]

just for fun, i googled getrag g56 to see what i got, and one interesting page from allpar came up here.



they list a 6. 7l cummins as order code ETJ... rumors... ?

 

[DPelletier]

I think the Dodge with the CTD/NV-5600 combo is the best light truck for someone who prefers to row the gears.

The NV-5600 actually played a big part in me buying my last two Dodges. My prior truck was a 47RE and I realized I made a mistake after the first month. After joining the TDR and also doing a little research on the available trannys in all three brands, I wanted the ETH DEE badly. I've never regretted buying the 6 spd in my current truck(s) even for a second.

The weight issue sounds plausible, but I suspect that is only one reason. Cost is perhaps another and I also suspect they would like the transmission to shift more "car-like" to avoid complaints from customers who expect the truck to shift like thier sister's civic.

Anyway,

Here's to hoping that the new transmission is as good as the current one.



Dave

 

[KCJackson]

just for fun, i googled getrag g56 to see what i got, and one interesting page from allpar came up here.



they list a 6. 7l cummins as order code ETJ... rumors... ?

Even wth that, I still plan on getting an 05 for now. I'd hate to wait for the 06 powertrain of a 6. 7L Cummins and a 59RE only to find I don't like the design adjustments. If I like the changes, I can always trade in a few years and have the bugs worked out.



One also has to surmise that the 6. 7L Cummins may be needed to maintain the power levels we're used to while meeting the 2007 emissions and nationwide ULS fuel regs.