12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

NV4500 Swap Question??

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Old Mar 2, 2012 | 04:25 AM
  #1  
Sudia247's Avatar
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Default NV4500 Swap Question??

I bought a NV4500 transmission, planning to swap it in exchange for my 47RE. My plans are to buy a Valair 1-3/8 Billet Input Shaft, Rebuild Kit and a new Main shaft to help fix the 5th gear problems, and unsure which clutch to go with, South bend or Valiar, And hoping to find a NV271D Transfer Case to bolt up to the back of it. I would just like to clarify everything I need for the swap, I already have the transmission, steering collumn and a Manual Transmission Cab. I feel like the only thing more I need is the slave cylinder, pedal assembly, and shifter boots.

1st: Can I still use my ECU in my truck, and just leave the transmission port on it unplugged, not causing any crazy lights going off on the gauge cluster?

2nd: The hole for the tranny shifter and t-case shifter are connected holes inside the cab, how do the too boots bolt up?

Thanks!!
 
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Old Mar 2, 2012 | 08:22 AM
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I'm assuming you got the bellhousing with the trans ? Also I think the T case is NP271HD not NV Other than that I can't answer about the ECU and would assume the boots would be self explanitory once you have them in your hand
 
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Old Mar 3, 2012 | 05:32 AM
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Originally Posted by tiremann9669
I'm assuming you got the bellhousing with the trans ? Also I think the T case is NP271HD not NV Other than that I can't answer about the ECU and would assume the boots would be self explanitory once you have them in your hand
I don't have a bell housing yet, but It's in the works. I was only wondering about the boots so i know what to look for, and if I still used my t case boot from the auto, or if the t case boot and tranny boot were one item with the manuals..
 
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Old Mar 3, 2012 | 07:44 AM
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you can use the ECU in ur truck, just have to cut n splice come wires for the clutch saftey switch n reverse lights. when i did mine, the trans temp light came on so i just pulled the bulb. you will also need the driveshafts from a manual truck. the 47re is longer than the nv4500 so your rear driveshaft needs to be longer n the front shorter. you dont really need to change steering columns, i just knocked the pin out n removed the auto shift lever. if your going with a dual disc clutch i would strongly recommend gettin the hydraulics from southbend or valair, it made a big difference for me.
What do you mean by a manual transmission cab?

good luck with the swap. its really not that bad
 
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Old Mar 3, 2012 | 11:54 AM
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Originally Posted by cummins95
you can use the ECU in ur truck, just have to cut n splice come wires for the clutch saftey switch n reverse lights. when i did mine, the trans temp light came on so i just pulled the bulb. you will also need the driveshafts from a manual truck. the 47re is longer than the nv4500 so your rear driveshaft needs to be longer n the front shorter. you dont really need to change steering columns, i just knocked the pin out n removed the auto shift lever. if your going with a dual disc clutch i would strongly recommend gettin the hydraulics from southbend or valair, it made a big difference for me.
What do you mean by a manual transmission cab?

good luck with the swap. its really not that bad
Ok cool, I don't mind cutting and splicing wires. Is there a diagram that show what wires I need to cut and splice, or is it pretty easy to figure out? and pulling the bulb if the tranny temp light comes up isn't a problem either. I did realize I would need different drive shafts, I already have a front out of a manual, and I wanted to do a slip yoke eliminator in the rear anyways, so I'll replace that with the new length as well.

I know fore sure I am planing on buying the Valair Hydraulics, but I am not sure what clutch I want yet... I wanted one for 500HP but I also want it DailyDriver Nice. Do you have any suggestions? When I said I have a manual cab, I meant the cab on my truck originally came with a manual, so the hole is already cut for the transmission shifter. (I crashed my truck, so I had to put a new cab on, the cab I have now being that).

Thanks!
-Aaron
 
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Old Mar 3, 2012 | 02:17 PM
  #6  
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I am putting a 12v in a 99 ford superduty whith a nv4500 and a 273 tcase that I turned into a manual

1 the fifth gear fix this is the only real fix for it
NV4500 Transmission 5th Gear Repair

the tranny parts the best place I have found for them are Midwest Transmission Center
these guys know their trannies it is not just someone that looks it up in a book they really know what will work and what wont

the 271 273 trans you can use either a dodge or ford they are the same you have to do changes to the rear drive-shaft any way

you can turn the 273 into a manual shift with out too much problem
esof elimination build - Page 3 - Ford Truck Enthusiasts Forums
on post 40 I just took it and ground it so it is flush with the stub coming out of the tcase and when I changed my input shaft I drilled and taped and 3/8 hole
http://www.ford-trucks.com/forums/pi...ictureid=90542


now the bummer the input on the transfer case will have to be changed to a 29 spline

http://www.allstategear.com/ has them at the most reasonable price
http://www.ford-trucks.com/forums/pi...ictureid=94082

you don't need to change cabs just pedals

the shifter boot will work just have to change modify rods

any other stuff just drop me a pm or post it

Dennis

---AutoMerged DoublePost---

oh one more thing

the 271-273 dodge uses a different yoke so you will have to change it for the rear trans anyway

the dodge uses a slip yoke the ford uses a direct bolt

I have the drive shaft part off the ford when I had my drive-shaft shortened you will have to check measuments

ford superduty transfer case | eBay


this is what the ford tcase looks like note the output for the rear

99 00 01 02 03 04 FORD F250 SUPER DUTY TRANSFER CASE | eBay

04-06 07 08 09 10 DODGE RAM 2500 PICKUP TRANSFER CASE | eBay


for some reason the dodge ones are more expensive than the fords

ford 99-03 uses a 271-273
dodge 05-08 271-273

might want to double check years on the dodge
 

Last edited by deck60; Mar 3, 2012 at 02:17 PM. Reason: Automerged Doublepost
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Old Mar 3, 2012 | 11:04 PM
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for the clutch, i love my 3250 dual disc from south bend. yeah it wasnt cheap, but its definitely worth it. and i understand you now about the cab. i thought you were plannin on switchin cabs just for the hole in the floor haha
 

Last edited by cummins95; Mar 3, 2012 at 11:04 PM. Reason: spelling
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