never heard of that
I did a pretty large amount of research concerning NV4500's when I put one in my old YJ, this is some of what I found out.
For all chevy versions of NV4500's you will have to purchace an adapter to bolt up a jeep transfer case. You will basicly be converting the rear of a chevy transmission to a dodge. I am almost positive that the dodge tailhousing & output shaft is a direct swap onto chevy trannys.
If you use a dodge version you will basicly have to convert the front of the transmission to a chevy. Using chevy clutch, shift fork, etc. Pretty much only the bellhousing will be a specialty AA part if you are using a jeep engine.
The only exception to the main body of both chevy and dodge NV4500 trannys being the same is the odd but highly sought after early chevy NV4500's. They have an even lower first gear. If you find one and it isn't expensive, pick it up. Even if you don't use it you can unload it for a mint, cuz they are very hard to find and just as easy to adapt.
Unless you purchace a specialty aftermarket NV4500 from AA, JB Conversions, etc. You will probably be using a tranny salvaged from a dodge or chevy truck. With either one you will have to purchace adapters to make it fit in between a jeep engine and transfer case. The only major difference in my eyes was cost. The rare chevy case brings so much more money, I couldn't see going after one. The regular chevy nv's will require a new tailhousing and output shaft. The dodge nv's will require a new bellhousing and some off the shelf chevy parts, and a jeep external slave cylinder. It is cheaper to convert the dodge than to purchace the chevy and convert it in most cases. Unless you are using a chevy engine, I would skip the chevy nv4500. But then you need to sit down and put some paper to it, and see which is cheaper.
Also when you talk to the guys at AA they will tell you that you cannot use the diesel version. I accidently got a diesel version NV4500 when I did my conversion and found they will work. The reason they will tell you that it will not work is the front bering retainer for the input shaft is much larger for the diesel verison. That is true, but that front bering retainer is much better material than the modified front bering retainer that they sell. Not to mention that the larger diesel version can be turned in a lathe to match the dementions of the modified version. Most times if you have the time to get the bering retainer turned in a lathe by someone it is cheaper than the modified one that AA sells. I have the dementions if anyone is interested. Also the reason the front bering retainer is larger is cuz the berings are much larger...which is nice as well. The diesel version is much cheaper than the gas version too, not nearly as sought after.
Jason
