Help Me Pick a Drivetrain

[roundhouse]

you would need to swap out the input shaft and bell housing for the Chevy versions, then you would have to figure out the speedo situation as the NV4500 has no provision for a speedo cable, if you had 4wd then this would be a non-issue as the speedo cable comes from the transfer case. oh and you would have drive shaft modifications and clutch pedal assemblies to find

I knew it being a cummins meant the input shaft was too big. Am I just looking for the SM bellhousing and Chevy input shaft and retainer? I figure the Dodge shaft for gas NV's is still an inch too long for a GM bellhousing, right?

Regarding the speedo, I think there's certain Dodge units with a mechanical speedo. This will be a bit of a problem otherwise. Seems pre-97 Dodge stuff had a mechanical speedo in the tail housing. I think I can swap the VSS for that, but it will still need the right gear and cable.

You need the GM NV4500 bell housing and hydraulic clutch, NOT an SM456 bell housing (SM456 bell housings can be modified to work with some NV4500s not all) and a GM NV4500 input shaft. I have never heard of, or or seen a NV4500 with a mechanical speedo cable provision. Personally i would forget the Dodge NV4500 and find a GM NV4500 for what you want to do it would be a whole lot less effort than finding the parts to convert Dodge to GM. I have no choice but too make a hybrid GM/Dodge NV4500 for my Cummins swap, Dodge input and bellhousing GM output and tail housing

Didn't dodge make passenger drop t cases ?

[bryanedp9]

you would need to swap out the input shaft and bell housing for the Chevy versions, then you would have to figure out the speedo situation as the NV4500 has no provision for a speedo cable, if you had 4wd then this would be a non-issue as the speedo cable comes from the transfer case. oh and you would have drive shaft modifications and clutch pedal assemblies to find

I knew it being a cummins meant the input shaft was too big. Am I just looking for the SM bellhousing and Chevy input shaft and retainer? I figure the Dodge shaft for gas NV's is still an inch too long for a GM bellhousing, right?

Regarding the speedo, I think there's certain Dodge units with a mechanical speedo. This will be a bit of a problem otherwise. Seems pre-97 Dodge stuff had a mechanical speedo in the tail housing. I think I can swap the VSS for that, but it will still need the right gear and cable.

You need the GM NV4500 bell housing and hydraulic clutch, NOT an SM456 bell housing (SM456 bell housings can be modified to work with some NV4500s not all) and a GM NV4500 input shaft. I have never heard of, or or seen a NV4500 with a mechanical speedo cable provision. Personally i would forget the Dodge NV4500 and find a GM NV4500 for what you want to do it would be a whole lot less effort than finding the parts to convert Dodge to GM. I have no choice but too make a hybrid GM/Dodge NV4500 for my Cummins swap, Dodge input and bellhousing GM output and tail housing

Didn't dodge make passenger drop t cases ?

I believe so, but irrelevant in this case. 2wd. The fella with the Dodge NV4500 also has a utility bed. Trying to trade me for an old CJ5 I have listed for $1500. Tempting, but yes, it would be some work to adapt. Still pretty sure I can fit a speedo cable to it.

[roundhouse]

Why not use the Chevy version of the N V ?


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[bryanedp9]

This is just being offered to me, I don't have the cash on me, and I am having a hard time finding one affordably at a yard.

[bryanedp9]

So I held off on the Dodge unit. Now a fella is offering a 6.2 with the turbo off the 6.5 (also available. he said it turns over and the oil looked good) plus a 4WD NV4500. I know I'd be swapping the mainshaft and tailhousing, plus ditching the transfer case. It's supposedly a 93 6.5 and NV4500, mechanical pump, the super low 1st gear. He said he thinks the 6.2 was early 90's but it's got a v belt system. Wasn't sure about the EGR.

Considering it's coming from a GMT, what else will I need? Pedals, master and slave from a GMT wouldn't work, would it? What's the stock glow plug system like? I'm guessing I'll need a bunch of factory brackets for AC and alternator and whatnot. I'm also hoping my driveshaft will be long enough to adapt.

[Stewart G Griffin]

To hi-jack, there are only two drivetrains i want now (besides the 4.3, Th-350, 2.56 gear 10 bolt combo i have now).

1)  6.2 or 6.5 mechanical diesel with banks turbo kit
Th-350 or th-400 trans
Gear vendors overdrive unit
14 bolt full float rear with 3.21 gear.

2) Whole new truck with:
     Duramax
    Allison automatic
    Whatever rear is available now, i'm assuming the 14 bolt?
   And i'm willing to pay for this one.

[bryanedp9]

So it's being brought to inspect tomorrow, and hopefully trade for the 2 motors and tranny. Anybody familiar with the 6.2 and 6.5 wanna chime in on what to look for? Is there any way to get an idea of how the balance shafts are doing? Where can I find casting #'s on these?

Pics are overdue. Here's the truck:



And here's the parts, with a spare TC. The mounted one is a driver side drop, which leads me to believe it's the newer style NV4500. Is that right or what's going on there?

[Stewart G Griffin]

Um, i didn't think 6.2/6.5's had balance shafts.   Or do they?

[bryanedp9]

Um, i didn't think 6.2/6.5's had balance shafts.   Or do they?

Sorry, harmonic balancers.

[fitz]

A big issue with the 6.2 is chewed up threads for the starter bolt holes in the block.
Missing starter support brackets don't help when your dealing with a heavy starter and a high compression motor.
I have to admit I'm guilty of not replacing the starter support bracket on a small block and never had a problem.  When this bracket is missing on a 6.2 its only a matter of time before you start breaking starter bolts or in some cases cracking the block.

[roundhouse]

If you get it i would sell the dodge Trans and buy a Chevy version


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[bryanedp9]

Well I traded up with the fella today. A storm rolled in as soon as it was unloaded so I haven't looked the engines over well, but two turbos, an intercooler, 6.2 and 6.5, and a 4x4 GM NV4500 (I passed on the Dodge unit). The 6.5 pump has the top seal off it. Hoping it isn't beyond understanding and fixing at home.

[bryanedp9]

I guess this thread is sorted now. Although I got to looking, and I'm not sure which pumps I've got, but the blocks are a 99 and 2000 6.5. Kind of a good thing, but lots of unnecessary wiring and whatnot to sort out now. I'll try to make a thread for the swap once the time comes.