So what is this?
 

http://67-72chevytrucks.com/vboard/a...1&d=1331174051

Engine, tranny and ???, driveshaft.

I've never seen one of whatever this is. My guess? A Warp drive coil.

Re: So what is this?
 

Looks like an aftermarket overdrive unit. Gear Vendors?

Re: So what is this?
 

That was my thought also ...

Re: So what is this?
 

definitely looks like a Gear Vendors unit.

Re: So what is this?
 

Mike It looks to be an aftermarket under/overdrive unit. And with it you can make a 3 speed atuo in to a 6 speed or a overdrive into an 8 speed auto. The newer ones are eletronicly controlled whereas the older units were man/electric by a switch. They are built to take crazy torque and power over 1000hp and tq from what I remember.

Re: So what is this?
 

exspincive !!!

Re: So what is this?
 

I thought the GV was only a single speed overdrive, and was thusly smaller. That thing is huge, looks like it could have 2-3 gears. I'd like to know what it actually is.

Re: So what is this?
 

Actually I think it is a late Borg warner t-case. You just can't see the right side or front driveline.

Re: So what is this?
 

Nope - a GV is a gear "splitter" - your o/d essentialy comes out of the spilt of your auto trans's final gear. So, in a TH400 or TH350, your "o/d" comes from the 3rd gear split.

They are expensive. I priced one when considering my T5 swap... It wss around $2400 total. Thus my T5 swap. But they are nice nad incredibly sturdy. Trans and rear will both break before this thing.

In fact, I saw one on the gorgeous hugger/white 69 (or maybe a 70) swb of a member at the LA Roadster show this week. Got me to thinking about if for a different project I'm thinking about. Trying to eek a few extra mpg out of a big block.

Personally, I'm not a huge fan of the splitting idear, I, as most, would buy it mainly for the o/d part of the final gear ratio. Just think of it as an expensive way to maintain yoru stock trans and convert to single driveshaft in a lwb simultaneously :) Kinda kidding - they are expensive, but they are also very nice units.

EDIT: Sorry Oldgoalie-you posted in between BR3W City and me while I was typing (hunt & peck style...) - I was responding to him. I'm not 100% certain it's a GV unit, but sure looks like a gear splitter of some sort.

Re: So what is this?
 

Look at the font end. Sure looks like a 4X4 to me.

Re: So what is this?
 

I think you are correct. I see dual shocks, leaf springs and an axle tube on the front of that chassis.

My guess is that is a NP241 transfercase.

Re: So what is this?
 

that yoke looks like it is sitting a fair ways out

I have an acquaintance that is trying to sell his 74 motor home which is still in pretty good shape. he was asking 4,000.oo but has been offered 2200. which he says he may let it go for. the reason that I am mentioning if is if some one who is doing up a 1t this may be an interesting buy. it has a 454 in it with a 400 with a GV unit(he had it installed). newer dual wheel rear axle( i would imagine would be a decent ratio also) and whatever else they need
ron

Re: So what is this?
 

I found this pic of the np241 - can you flip it over like that?

http://www.novak-adapt.com/images/pi...o_231_full.jpg

Re: So what is this?
 

What! Did I stump some of the big boys?

Re: So what is this?
 

A transfer case for sure. Looks like the np 208 i had in the 61.

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Here is a GV unit, seems different than what we have pictured.
http://www.gearvendors.com/shop_imag..._mech_flat.jpg

No clue about trasfer cases

Re: So what is this?
 

I think 62 short step is correct. It does look like a 208.

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Duh! Sure wish I'd noticed that small detail known as a front axle... Thanks Capt! Then the logical next question would be (what I think someone already posted) is how would it work if it's rotated like it appears to be?

Re: So what is this?
 

I was waiting for someoene to notice that ...........

Re: So what is this?
 

You can get one with driver drop (ford) or pass drop (chevy).

Re: So what is this?
 

That or an NP 208 which is common but a t-case either way..

Re: So what is this?
 

Can one of these duhicks but place on the end of a manuel trans 3 speed maneul if so I have to get one
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Re: So what is this?
 

wtf is this sentence?
If your asking if you can put a gearvendors behind a manual 3spd, yes.

Re: So what is this?
 

There were passenger drop NP241's used in the '88-'91 V-series trucks and Suburbans.




After looking at this again, I think 62 short step is correct. It does look more like a NP208.