The diesels had a 23 spline input shaft for the autos and a 29 spline shaft for the getrags. Both models were NP 205's.

 

OK, that's a good thing to know...Leads me into another question, though.

Easier to find a pre-matched and mated engine/tranny/t-case, or easier to change the input shaft on the existing T-case? I presume I'm gonna need the "4WD" tranny anyway, in order to get the tailshaft tunnel that attaches to the face of the T-case, anyway, right?

 

in order that I don't miss something important... did ALL the W-series use the NP 205's, or just the 250/350's or just the Diesels? remember, a Ramcharger's essentially a W-150 station-wagon...

 

It will be easier to get a matched set. If your going with a gasser engine ( like you said ) I am not sure what they came with. I just gave you the diesel options. I think the later gassers had an aluminum case transfer. If your going with a 440 I would look for an older set up that was behind a big block and I would assume those would also have the better cast iron gear to gear np 205. I never messed with any gasser dodge's so Im over my head with those. ( I was a chevy gasser guy before a diesel idiot )

 

The 205s only came in the diesels unless they were a special order. All the the others were the 208 aluminum case. Most transfer cases behind the 727 and np435 in the gasers had the same spline count from the 74-93. I have run the 208s behind big blocks for years and they do break. I would suggest finding a 205. Or a 203 and do a part time change over kit into it. The only thing have to worry about those is stretching the chain but it takes alot abuse to do it.

 

I've got a gasser 90 w250 that had d60 front and 205, but they are rare as hens teeth. 99.99% of gasser dodges from 79 1/2 on up are gonna be 208 or some variation thereof, stick version even rarer.

 

Your truck is one of those rare trucks to find, they were special orders by usually government agencies, and military. There were a few leftovers that got sold to the public.

 

No difference in frame width between the different pickup frames, except probably the cab and chassis versions.

 

All the frames were the same from 74-93 in the 4x4 with the exception of the divorced np205. The 2wd had different crossmembers.

 

OK,...Well, when this project's in the progress zone, we'll have an EFI 5.9L for sale, matched w/its 4spd auto (727?) and the "gasser" t-case and axles for sale.

In their places will be either a 1st or 2nd-gen Cummins/NVG 4500/NP205 and Dana 60's.

I'm glad to know the frame-rail width is the same, so that the axle-hanging geometry will not have to change.

Gonna be a big project, hopefully pegging the "cool-o-meter", and resulting in a 50-year truck.

 

OK, I just re-read some of the posts: Raises a question. Any special considerations if we get a 1st-gen "B", and a NVG 4500? For under-hood geography, the non-intercooled version would be easier, but, if it would make life difficult under the floorpan, that's not a good tradeoff, and I'd be better off with a P-pumped/cooled 94+....but, then, I still need a T-case that matches a passenger-side-pumpkin front-axle.

So, here's my intention so far:

B...NV4500...NP205/passenger side front...For that, would I be stuck with a Getrag, and an "old" 205, or can a "new" tranny and an "old" T-case end up pointing the right direction?

 

A 29 spline transfer case from a getrag set up will work with a NV4500 diesel tranny. My 92 has the NV4500/205 set up.

 

The getrag 205 will fit and Dodge diesel stick trans used to current year. They all use the 29 spline output shaft. The mounting is the round 6 bolt configuration.

If you notice my signature. I have a G56 6spd in my truck. It came out of a 2007. The 205 bolted right up. No problems.

 

sigh of relief....

 

a guy I found on ebay has 4500's mated to 205's, and with a variety of bell housings.

gonna order his whole setup. might seem a little pricey, but, he offers a bit of warranty, AND they arrive as a unit, already disassembled/cleaned/inspected and reassembled

not a bad deal that way

 

the NV4500 mates to the NP205, that was the setup in 94 just purchase your 4500 for a married setup with the NP205 swapping the Getrag (89 TO 93) out for the NV4500 is common upgrade

 

the NV4500 mates to the NP205 they just need to be purchased as a matched set. the 94 models came with this setup

 

94+ models came with 241 Tcases. Those are a driver side drop case. The 1st gen 205's are a passenger side drop case.

 

my bad, a friend has a 94 with a 205 and 60 front, thought it was stock

 

No it isn't. All 94+ models were driver side drop with 241's and higher Tcase model numbers.

93 was the last year for the 205's in the Dodge line up.

 

that big-assed heavy chunk o'iron is on the way, as are the matched d-60 axles (rear has already been disc-converted, too!)

found a clutch-pedal/brake-pedal set on ebay

now, just need clutch, engine/flywheel, and the various small incidental parts needed for the proper function of the major components....


progress, progress, progress.....might have'er up and running within the next couple of months

 

Did you order the AA style bell housing to adapt the 1st gen block to the NV4500 or are you going to get the block adapter and factory NV4500 bell housing?

 

 

I have to assume that the bellhousing is the one from New Venture, and not one that's "Dodge" or "Cummins" designed.

Here's the update, though:

Engine arrived @ Coastal Diesel a couple of weeks ago, when cumminsforum member Mark Nixon dropped it off. In the meantime, I've received a SouthBend 400HP/800TQ clutch, and the matching 13" flywheel, and also a pack of 3/4T springs for the front end.

The shop's got all the major components, now, for the buildup.

Axles.....check
tranny/t-case....check
engine.....check
clutch.....check
front leaves for the bigger weight....check
the truck itself.....check.
replacement pedal-set for the firewall....check


They'll be able to identify and source the final-fitment specifics, like clutch housing/bellhousing adapter, longer U-bolts for the spring-axle mounting


they've got bright shiny tools, floorspace and time.......and a way to write up a bill