G56 with 4:10???

[JHardwick]

I'm turning the same RPMs as you at cruise, with 3. 73s, even though you have 4. 10s. I stand behind my statement.



I have driven an NV 5600 truck with 4. 10s. I hated it, too...



More gears, YES!! Lower gears, NO!

I'll take the lower gears in the rear and less stress on the transmission anyday ... ... ... ... . give me 4:10's and a 7spd ... ... ... . or better yet an 8spd and 4:56's, LOL



edit ... ... ... I forgot, some people don't really tow ... ... ..... I apologize to all of you for this post :-laf

 

[JHardwick]

I don't remember asking for any ones personal preferance for gear ratios, I'm a big boy and I know what works best for my own application. All I asked was if there was anyone who has rec'd a Jan. ordered truck with 4:10's what they ended up getting.



Think about this , DC working with Eaton and there Med. duty 7 speed. Same 1st to 5th (direct 1:1) but a . 8_? O. D. and a second . 73 O. D. make it standard with 3:73 and 4:10 and 3:54 option.

Don't take this totally wrong, but if your such a "big boy" you wouldn't be here asking what transmission/gearset combo you ordered :-laf



I just gave Dodge a check for $40,000, but I'm not sure what I bought? :-laf

 

[JHardwick]

Not really. Even though the G-56 has closer gear spacing than the NV-5600, with 4. 10s, you have to shift an NV-5600 faster in order to accelerate. Thus why I couldn't stand the NV-5600 with 4. 10s... . too much shifting, you were in 5th by 20 mph.

Ever hear of skip shifting? 2-4-6 works for me sometimes, yeehaww, got me a 3 speed Oo.

 

[JHardwick]

Got to thinking, LOL, dangerous I know ... ... ... ... I've even caught my girlfriend skip shifting a time or two ... ... ... if a girl can do it, a world class rock crawler can do it. BTW, 2-3-5-6 works too if you want a 4 speed.



I can do any skip shift pattern I want, but when I'm loaded way down I still have 1-2-3-4-5-6 and less stress on the transfer/transmission with a 4:10.



All a matter of opinion I suspect.

 

[Tim]

Ever hear of skip shifting? 2-4-6 works for me sometimes, yeehaww, got me a 3 speed Oo.

Yes, I do it at times, but it's less necessary with the G-56 and 3. 73s.



There is more to ratios than only the final drive everyone talks about.

 

[JHardwick]

4. 10s are not desirable nor beneficial to nearly anyone with a truck with an I6 Diesel. Even if I was going to pull a trailer with 37" tires, I'd still keep my 3. 73s.

BTW, this is the original statement that you made. How wise of you to make such a blanket statement. Maybe someday you'll hook a real load and wish you had a little more gear

 

[Tim]

My trailer weighs 9,000 lbs an I can pull a 6% grade with the AC on in overdrive at 75-80 mpg, loaded.



I'll stand behind my statement. No use for 4. 10s in these trucks with a . 79:1 overdrive. Just wearing the engine out and making more noise, an burning more fuel.

 

[JHardwick]

My trailer weighs 9,000 lbs an I can pull a 6% grade with the AC on in overdrive at 75-80 mpg, loaded.



I'll stand behind my statement. No use for 4. 10s in these trucks with a . 79:1 overdrive. Just wearing the engine out and making more noise, an burning more fuel.

Like I said, you may have the opportunity to hook a real load some day ... ... ..... I'll keep the gear and less stress on the transmission.

 

[DPKetchum]

Same here! I bought a used Dodge with Cummins and 3. 55s. Towed a few times several hundereds of miles with my 10k hooked to it. CHEZZ what a job on the BIG inclines through Kentucky etc. Heck it was kinda gutless once you lost speed on I-75 south coming into Atlanta. Had to spend over a $1000 to install 4. 10s and deal with a axx parts manager trying to get(3 trys)correct speedo adapter to get speedo correct.

 

[HOBrian]

Not really. Even though the G-56 has closer gear spacing than the NV-5600, with 4. 10s, you have to shift an NV-5600 faster in order to accelerate. Thus why I couldn't stand the NV-5600 with 4. 10s... . too much shifting, you were in 5th by 20 mph.



I would like to see one of two things happen with the next generation of these trucks:



A) More gears. A . 5:1 OD for empty crusing would rock.



B) Space the gears out more. The Cummins does have a fairly narrow powerband compared to the V8s but I don't think it would hurt it. 2nd, 3rd, 4th, and 5th are pretty close together if you ask me.

Tim not to flame, but I thought dodge went to the six spd because the gears were too far apart on the NV4500. You were either real high in the rpms or down low and lugging the engine. just my . 02



Brian

 

[DPKetchum]

The NV4500 3rd to 4th and back down is terrible. I could stand to see gears even closer togather on the NV5600 only I would like a 7th REAL OVERDRIVE for empty cruise. I bet thats not a easy feat or it would have been done. Too many would try to TOW loads in O. D. and twist something out of the trans eaither on accel or slowing,braking hard.

 

[kah68]

J Hardwick, I know what I ordered in January, It was a six speed with 4:10's I asked the salesman which transmission code and he couldn't tell me. Tim D. C. lied! It was an option on the dealers computer and still is an option on there web site. www.dodge.ca I started this thread to find out what people who ordered 4:10's (like I did) were receiving. So far I have had some good info. but noone has really answered my question because I have yet to hear from someone who ordered 4:10's / 6 speed in January.

 

[dhill]

OK. This didn't work the first time I tried it maybe it will this time. Apples and apples this time. The final drive ratio for the NV5600 with 4. 10 and the G-56 with the 3. 73 are the same. The difference is in the split of the gears, the G-56 being more even. Look at the charts at the bottom. Also included is a chart with a G-56 with 4. 10's if you could get them.



kah68, if you get your truck with 4. 10's you will have a very,very rare truck. In fact you will have the only one built this year. The reason that you havn't heard form anyone that ordered a G-56 with the 4. 10 option is because no one else had that option available to them. Web sites are not updated as often as they should, and even tomeygun says the Dodge site is very inaccurate.



I have the G-56 with 3. 73's and the speed/rpm are exactly as they are in the chart. If you get the 4. 10, at 70 mph you'll be turning 2400 rpm.



Dave

 

[dhill]

Here's the chart of the G-56 with 3. 73



Dave

 

[JHardwick]

4. 10s are not desirable nor beneficial to nearly anyone with a truck with an I6 Diesel.

I'll stand behind my statement. No use for 4. 10s in these trucks with a . 79:1 overdrive.

Is it the I6 or the G-56 that doesn't deserve the 4:10's, you have me confused?

 

[kah68]

Thanks guys, I'll wait for the G-56 and 3:73's. I'll be happy with this combo if the transmission and clutch hold together.

 

[kah68]

Still no sign of the truck but got the build sheet from the dealer. G56 with 3:73's. I'm glad cause its close to the 4:10 5600. Now waiting to see what South Bend Clutch will bring out to upgrade the Dual Mass clutch.

 

[RJOL]

J Hardwick, I know what I ordered in January, It was a six speed with 4:10's I asked the salesman which transmission code and he couldn't tell me...

Kirk... The hardest part about ordering a new truck is waiting for it to be delivered. There are thousands of others on this site that went through what your going through...



That being said... By subscribing to this site, you already know about 10 times as much as the average Dodge truck salesman or dealer. There are a few (especially the ones that are TDR members) that know more than what they read on the product sales brochure.



When I ordered my truck, at the end of January 05, the dealer and the salesman knew nothing about the G-56, and the NV5600 was still a valid order code with Dodge, even though it was not available. In fact, the order site had both the DEE and the DEG codes listed. Even when I picked it up in March, the salesman really didn't know squat about the changes to the 05 drivetrain. I venture to guess that if you ever have to take your truck in for service, you will know more then most service reps, too...



Keep reading and by the time you get your truck you will be well on your way to being an informed buyer... Have fun...

 

[Tim]

Is it the I6 or the G-56 that doesn't deserve the 4:10's, you have me confused?

It's both that make it a gross mismatch, but in my personal opinion, the NV 5600 and 4. 10s were poorly matched as well. I drove a truck so equipped, and the price was right... and I still walked, because I couldn't stand driving it empty. It needed at least one more gear, if not two.



As to the 7th gear deep OD thing, you guys are probably right about the strength. Make 7 gears with an even deeper granny, and just a hair lower gears throughout, make 6th . 8:1, and 7th . 67:1 or so. Then put the 3. 55 gears in, or even use 3. 42 gears. All the components would be stronger because the overdrive isn't as deep for pulling (. 8) and the higher ratio gearset in the axle would be stronger as well. I'd bet it'd make for an awesome combo.



I'd be willing to bet that the reason nobody knew about the drivetrain change mid-year for 05 is that 90% or more of dealers will never sell a Diesel truck with a 6 speed... . they're pretty rare unless ordered around these parts.

 

[Scrappy]

tim, I got 4. 10's for the simple fact that I knew I was putting 35' tires on it. with my truck the final drive ratio on 35's the 4. 10's is similar 3. 73's with the stock tires, I still want to be able to tow and the 3. 73's with my tires wouldn't work as well. I grossed 18000 lbs towing from Alaska to Florida and some of the mountains that I went over would have been horrible with 3. 73's.