Swap a Cummins into my hauler

Refigured based on 215/85-16. Doing the math, that tire should be 30.4" in diameter. The formula in my spreadsheet has a fudge factor built in to account for the squat of the tire.
 

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You ARE going to want an OD transmission. The NV4500 came in the dodge 3/4 and one ton trucks from 95 till 99 or 2000 i think. The Six speed overdrive that came out after that would be really nice.

Down sides to an NV4500 are:
Non granny gear reverse. I use 4low to back up a trailer.
BIG!!! gap in gear ratio between 3rd and 4th. Gotta wind 3rd out to 3000rpm and shift quick with a heavy load.
5th gear nut will back off and the gear will fall off..... happened to mine twice. It is now tack welded. Tried lock tight and locking nut.
I am currently trying to figure out how to put an auxiliary overdrive box aka gear splitter on the back of my T cast to solve this mess.

The six speed does not have these issues. I do not know which is better. The Getrag transmission or the NV5600? If i could find a six speed for mine at a reasonable price I would GLADLY swap it into my tow rig and put the NV4500 into my Jeep.
I think the Chevy NV4500 input is different than the dodge/ cummins compatible one.
I hope this random babble from my brain is helpful......
 
John Thomas destroyed the original NV4500 in his white Dodge, then had it rebuilt and destroyed it again about 6 months later. He then destroyed three NV5600's all from MANTRANS over a period of about 1 year. He now has a ZF whatever out of a Ford in his Dodge with a special bellhousing adapter. It has been working for a couple of years now I think.

My 2001 Ram 2500 has the NV4500. 221,000 miles and still working (knock on wood) just fine, but my truck is stock and I don't drive it like a race car.
 
Yeah, the ZF trans seems to be really tough.
 
upnover said:
What kind of RPM's will this engine sustain?
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Kinda subjective, but...

In their stock config, a Bosch pumped 5.9L will run 24/7/365 loaded at max governed speed... about 2700-2800rpm. Their original application was ag/industrial implements (trash/irrigation pumps, generators, etc) and where the 5.9L "legend" was formed, well before Dodge ever dreamed of dropping them in their junk.

My old truck (then Snappy's, then? :lol: ), '93 w/ A518, 3.54, 215R16s & "3K" governor spring (<$15 locally) would run 3300rpm+ @ 65mph+ (3rd/1:1) just fine, but it sure sounded like 4500rpm & brought a VERY uneasy feeling! The POS tranny would only pull OD on the flats/downhill before going nuclear :rolleyes:

Another tranny option would be the Getrag... aside from Bruiser & the tuner crowd (300-400HP), their not very refined. but pretty dang tough.
 
The FSO-6406A is a overdrive 6spd. It will bolt directly to my motors bellhouse. You would never have to worry about tearing it up. Only downfall is having to do some tranny tunnel fab. There is a write up on pirate4x4 about a guy that kept tearing a 5600 out of his newer dodge and went this route. Google FSO-6406a it is a eaton tranny. Has alot of usefull info between all of them. Not much bigger than a nv4500 just bigger bellhouse.

The early model chevy 4500 with the really low 1st gear will not bolt up to dodge nv4500 bellhouse. From what my buddie told me.
 
Caver Dave said:
Kinda subjective, but...
In their stock config, a Bosch pumped 5.9L will run 24/7/365 loaded at max governed speed... about 2700-2800rpm. Their original application was ag/industrial implements (trash/irrigation pumps, generators, etc) and where the 5.9L "legend" was formed, well before Dodge ever dreamed of dropping them in their junk.
My old truck (then Snappy's, then? :lol: ), '93 w/ A518, 3.54, 215R16s & "3K" governor spring (<$15 locally) would run 3300rpm+ @ 65mph+ (3rd/1:1) just fine, but it sure sounded like 4500rpm & brought a VERY uneasy feeling! The POS tranny would only pull OD on the flats/downhill before going nuclear :rolleyes:
Another tranny option would be the Getrag... aside from Bruiser & the tuner crowd (300-400HP), their not very refined. but pretty dang tough.
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ehhhh sort of.
The industrial history of the B is a bit mis stated here.
Sure it has ran Ag and G drive applications, but never at those RPMS...G-Drive (genrator engines) crank up unde 0% load wide ass open to 1800 rpms and never leave 1800rpm. Most Ag appliations are low rpm as well.

3300...yeah it will run it. But it wont like it.

I'll let Van and some of the other techs on here chime in...but don;t plan a build aorund sustained 3000+rpms with the hopes of longevoty or fuel mileage.
 
brooks said:
The FSO-6406A is a overdrive 6spd. It will bolt directly to my motors bellhouse. You would never have to worry about tearing it up. Only downfall is having to do some tranny tunnel fab. There is a write up on pirate4x4 about a guy that kept tearing a 5600 out of his newer dodge and went this route. Google FSO-6406a it is a eaton tranny. Has alot of usefull info between all of them. Not much bigger than a nv4500 just bigger bellhouse.
The early model chevy 4500 with the really low 1st gear will not bolt up to dodge nv4500 bellhouse. From what my buddie told me.
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Chip,
If you will consider manuals, FSO-6406.
You wont kill it.
Its a tad heavy...but you wont kill it.

BTW the Allison AX I mentione dis a non OD...but it would be the cheapest option. We crush dozens a year...if you are patient I can probably fin a low ielage unit for the cost of labor to pull (~$100)
 
Ron said:
ehhhh sort of.
The industrial history of the B is a bit mis stated here.
Sure it has ran Ag and G drive applications, but never at those RPMS...G-Drive (genrator engines) crank up unde 0% load wide ass open to 1800 rpms and never leave 1800rpm
Click to expand...

Read it again... I didn't say anything about the Ag apps running that rpm :flipoff2:

Ron said:
but don;t plan a build aorund sustained 3000+rpms with the hopes of longevoty or fuel mileage.
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Ditto! At 3K, it sounds unnatural, like it's gonna come apart in short order and the best mileage I could eek out towing (7000#) in 3rd was 11mpg... that was 50/50 highway/backroads going to URE at 20*F with a couple short bumps into OD going downhill. OTOH, I got 22mpg coming back from Swannanoa w/ empty trailer (16mpg going up Old Fort Mtn w/ 4000#) :lol:
 
14 bolt 3.21's are not avialable anymore, you would have to find a new set that is 15 years old or a used set. very hard to find. 3.42 are avialable.

I would not use a dodge auto, you will spend alot of money on it to get it to hold up to the abuse you want/need.

NV5600 are a waste in my opinion also, expensive hard to find, very little parts support.

NV4500 is acceptable 2wd do not have 5th gear problem. 95 and up chevy nv4500 known as HD is a direct bolt up with input shaft replacment very easy to do. Dodge nv4500 is just direct replacement pre 95 chevy NV's can be used with some modification its what i have in mine.

ZF6 is good option, there is an adpater from cummins to nearly every tranny do to popularity so if your going to spend the money on adapter do a very good tranny with good support. allison auto, ZF6 manual. 4l80 is also an option that is not to bad.

best thing to do is find a complete intercooled truck and take all the parts from it then your not parts hunting to make it all work buying individual pieces adds up quick.

As for motor mounts i would make your own, if you buy them then whoever made them dictates where the motor is going to be placed. most swaps i have seen use electric fan do to clearence. if you purchase mounts see what the plan is and make sure you like it. We made ours and run manual fan which i thought was important.
 
I am using 1st gen Dodge Cummins mounts and just have to slot the factory pad that the GM mount would have bolted to. Then the mounts are cheap and you can put it wherever you want as far as front to back goes.
 
Cperry said:
best thing to do is find a complete intercooled truck and take all the parts from it then your not parts hunting to make it all work buying individual pieces adds up quick.
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why not just buy a good used dodge, sell hauler and get a 16' trailer?
 
fair enough, sometimes I like to throw a wild card out there.


FWIW, I'd run 3.42's with either trans
 
Hurley said:
fair enough, sometimes I like to throw a wild card out there.
FWIW, I'd run 3.42's with either trans
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with the hauler he has the jeep on the hauler and the camper behind.

With your proposal he pulls the campr or the jeep
 
With the load you are going to be pulling, I'm thinking you are going to want your desired 70mph cruise rpm to be at about 2,100-2,600 rpm. I might be wrong though.

With an NV4500 tranny in OD, the 3.73 rear gear might be right where you need to be if your top cruising speed is going to be 70mph. If you've already got 4.10 gears, then they would probably work fine, but you would probably not be able to comfortably cruise past 70mph due to rpm's.

I'm just looking at the numbers though. Others may have actual experience towing loads like you are talking about. The most I have ever towed with my Dodge is about 7,000-8,000 lbs.
 
Flex5 said:
Down sides to an NV4500 are:
Non granny gear reverse. I use 4low to back up a trailer.
BIG!!! gap in gear ratio between 3rd and 4th. Gotta wind 3rd out to 3000rpm and shift quick with a heavy load.
Click to expand...

X2!
 
Cperry said:
best thing to do is find a complete intercooled truck and take all the parts from it then your not parts hunting to make it all work buying individual pieces adds up quick
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Definitely a way to go... I found a '97 4x4 w/ 150k on CL a few miles up the road that had been rolled for $1200. Seller cranked it standing on the hood, thru the front windshield... the cab was mashed level with the cowl & the rest of sheetmetal toast (looked to have been a BAD wreck). Before Rich would call me back to answer some questions, it got sold :poop:
 
4&6 bt parts

I have a ton of 4bt and 6bt parts in kingsport, tn. if you need anything or even engines.
bob
1-423-384-8938
no sunday calls please
 
02dmax said:
That is absolutely incorrect and rediculous. A 12 valve Cummins swap can be done cheap (reasonably) if you do your own work and get decent deals on parts.
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:popcorn:
 
Flex5 said:
Down sides to an NV4500 are:
Non granny gear reverse. I use 4low to back up a trailer.

......
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I have a NV4500 in my 2001 Dodge 2500 CTD and the reverse ratio is the same as low gear. In fact, as far as I know, all NV4500s have either a 5.6 or 6.3 reverse.
(if you're referring to 5.6 being sort of a marginal granny , I agree...they shoulda at least went 6:1 )
 
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