NV4500 will it fit??

[odog]

I was given an NV4500 today out of a 90's chevy 1 ton. It has a t-case attached, not sure what it is. Anyway, will the NV4500 fit behind a 327 in a 69 chevy 4x4? What kind of difficulty am I looking at? I have a NP205 t-case, will that mount to the NV4500 or maybe a rockwell t221 as a last resort if the t-case that is already there wont work. My sm420 may be shot in the 69, Im not sure as I havnt had a chance to pull it out. I dont have to use the 4500, but since it was given to me if it is an easy swap I might as well. I know easy is realative to skill level, but I can do most things, and what I cant I have help avaliable. Is there any electronic issues I may not be aware of?

[elks]

I will trake it and make it fit. In all honesty that is a great setup and your lucky to get it. I knoe they fit as we just put one into a 72. I was not present, but could see what they did. I am pretty certain it only required minor mods. the guy that put it in never mentioned anything hard about it.

[72lb4x4]

Weren't the 88 and up 4x4 trucks driver side drops? That means you can't use the TC, or you need a Ford front diff.

There's a guy on pirate4x4.com (I may have the site name off a bit) that fabs up adapters for the earlier NP205 TC to the round mount on the NV4500. I bookmarked it but nuked the OS and although its backed up somewhere, I'll never find it. Go to pirate4x4 and search the forums for nv4500 adapter or similar if you want.

The adapter is something like $400 which is way less than the one from AA, etc.

Of course there's the option of locating a late NP205 with the round mount and the right spline count, but they're a bit rare.

I have an NV4500 in the garage attic I hope to use one day on my truck. I have a NP208 in the truck now that supposedly bolts up to it, but of course a 205 would be more traditional and stronger.

Then you get into the hydraulic clutch and deciding whether to convert to mechanical or keep it as is. The trans won't bolt to an early bellhousing.

Both driveshafts have to be redone I'd guess too.

All these things start to add up to a fair amount of change...

Search around this site for NV4500 and you'll find a few threads. One guy in CO did a conversion this or last year on a square and did a series of posts on the adventure. He seemed to know what he was doing and may have done it before if I remember right.

[odog]

Thanks for the info guys. The price of the little things was a concern of mine. I know both drive lines will change. I belive you are right about the 88s and up being driverside drops. I am trying to kind of wrap my head around this to see if its something I want to do right now or wait, so all input is welcome. I appreciate all comments.

[elks]

Originally Posted by odog

Thanks for the info guys. The price of the little things was a concern of mine. I know both drive lines will change. I belive you are right about the 88s and up being driverside drops. I am trying to kind of wrap my head around this to see if its something I want to do right now or wait, so all input is welcome. I appreciate all comments.

Or you could find someone building a jeep that would love that tranny (87 and newer jeeps are drivers drop) and sell the tranny and get something else cool.

Never thought about drop side.

[72lb4x4]

I'd lose the TC and keep the trans. Hold onto the shifter and any other parts you can.
I think you (and I) would be ahead to just slowly gather parts til most of the pieces are there.

[72lb4x4]

I'd lose the TC and keep the trans. Hold onto the shifter and any other parts you can.
I think you (and I) would be ahead to just slowly gather parts til most of the pieces are there.

[Doug_J]

you should look up this guys build DirtyLarry 8.1 with nv4500. On subs, blazers and some of the 1tons they kept the squarebody up till 91 so if you have a 90 or 91 1ton nv4500 you may have passanger drop, but you should be able to look an tell that.

[coops714x4]

I just wish I could FIND a good used NV4500 thats what I am going to put in my 71 but not much luck around here if anyone knows where I can find one fairly close let me know

[vectorit]

Here is Dirtylarry's thread of his NV4500 install.

http://67-72chevytrucks.com/vboard/s...ghlight=nv4500

[DirtyLarry]

Odog,

That is a great deal if you got a NV4500 and tcase for free! It will bolt up to the 327 just fine but you’ll need to figure out what you want to do for a bellhousing. Either get a Advance Adapter$ housing that you can use a hydraulic or mechanical clutch linkage or find a ’92 – ’95 NV4500 housing with an external hydraulic slave or get a ’96-’06 bell with an internal slave/release bearing assembly.

If I ever do this swap on another vehicle I won’t bother going with a NP205 unless I am pushing big time torque and HP with another 8.1L. With a small block...go with a NP241 and save the money. That is a lot of work to make a 205 fit! If I were you, I would trade the transfercase you have for a driverside front output 32 spline NP241 from behind a TH400 from ’87-’91 V truck or Suburban. Basically, you need a 32 spline driverside output tcase from a straight axle GM truck. 241’s are fine…205’s are better but you will play hell finding one that is a direct bolt up to a NV4500.

Ah, I got my first NV4500 for free as well. After installing it, it was obvious why it was pulled from a truck to begin with. It was a piece of crap and I had to buy a new one in the end anyway. Definitely pull the rear cover and make sure 5th gear isn’t all tore up and loose on the tail shaft.

[Doug_J]

Originally Posted by DirtyLarry

Odog,

That is a great deal if you got a NV4500 and tcase for free! It will bolt up to the 327 just fine but you’ll need to figure out what you want to do for a bellhousing. Either get a Advance Adapter$ housing that you can use a hydraulic or mechanical clutch linkage or find a ’92 – ’95 NV4500 housing with an external hydraulic slave or get a ’96-’06 bell with an internal slave/release bearing assembly.

If I ever do this swap on another vehicle I won’t bother going with a NP205 unless I am pushing big time torque and HP with another 8.1L. With a small block...go with a NP241 and save the money. That is a lot of work to make a 205 fit! If I were you, I would trade the transfercase you have for a driverside front output 32 spline NP241 from behind a TH400 from ’87-’91 V truck or Suburban. Basically, you need a 32 spline driverside output tcase from a straight axle GM truck. 241’s are fine…205’s are better but you will play hell finding one that is a direct bolt up to a NV4500.

Ah, I got my first NV4500 for free as well. After installing it, it was obvious why it was pulled from a truck to begin with. It was a piece of crap and I had to buy a new one in the end anyway. Definitely pull the rear cover and make sure 5th gear isn’t all tore up and loose on the tail shaft.

Seems as if you always show up when your being talked about But its a good thing because your full of a lot of good info. Thank you sir.

[odog]

Dirty Larry thank you for the input. I will see what I can come up with for a t-case. I have a fresh 205 laying around, is one reason I thought of using it. I I will deffinatly check out the tranny before I do anything. It doesnt have to go in right now, it may be a project I do down the road. I am weighing my options to see if its cost effective to do right now. If my sm420 is trashed like I suspect, then I need to figure what route is more cost effective and better in the long run. I am gathering all the info I can right now and hopefully after this weekend I will have figured out what I am going to do. Thank you all for your help and input.

[Ricks1971]

this where I bought the adapter for my nv4500 and 205 transfer case. easy conversion.
http://www.advanceadapters.com/

[rgunlock]

Originally Posted by DirtyLarry

Odog,

That is a great deal if you got a NV4500 and tcase for free! It will bolt up to the 327 just fine but you’ll need to figure out what you want to do for a bellhousing. Either get a Advance Adapter$ housing that you can use a hydraulic or mechanical clutch linkage or find a ’92 – ’95 NV4500 housing with an external hydraulic slave or get a ’96-’06 bell with an internal slave/release bearing assembly.

If I ever do this swap on another vehicle I won’t bother going with a NP205 unless I am pushing big time torque and HP with another 8.1L. With a small block...go with a NP241 and save the money. That is a lot of work to make a 205 fit! If I were you, I would trade the transfercase you have for a driverside front output 32 spline NP241 from behind a TH400 from ’87-’91 V truck or Suburban. Basically, you need a 32 spline driverside output tcase from a straight axle GM truck. 241’s are fine…205’s are better but you will play hell finding one that is a direct bolt up to a NV4500.

Ah, I got my first NV4500 for free as well. After installing it, it was obvious why it was pulled from a truck to begin with. It was a piece of crap and I had to buy a new one in the end anyway. Definitely pull the rear cover and make sure 5th gear isn’t all tore up and loose on the tail shaft.

I've been told that the bellhousing with external slave on 92-95 NV4500 would have to be changed for one with a driver side external slave setup or it would interfere with the front driveshaft when using an axle requiring passenger side drop TC. Can anyone confirm this?

[simpson1972]

on the slave it probably depends if you have lift or not. i'm puting one in a 72 i'm working on that has 3'' of lift and it is nowhere close to interfering with the front drive line. The pass. side header is closer to the driveline than the slave is. I'm using a divorced np205 out of a international with a 2wd Nv4500 out of a 94 3/4 ton chevy

[rgunlock]

Thanks! I'm still collecting the parts, but maybe I can get away with using the bellhousing that came on the NV4500 at least until I get a chance to fit things up and see how it looks.

[DirtyLarry]

Originally Posted by simpson1972

on the slave it probably depends if you have lift or not. i'm puting one in a 72 i'm working on that has 3'' of lift and it is nowhere close to interfering with the front drive line. The pass. side header is closer to the driveline than the slave is. I'm using a divorced np205 out of a international with a 2wd Nv4500 out of a 94 3/4 ton chevy