Divorced transfer case?

[Chero77]

I know we have had a lot of discussions about overdrive trans swaps, however, I was thinking that this might be easier to do with a divorced transfer case. I know the M715's used a divorced version of the Dana 20. I was thinking that this would eliminate the trans to t-case adapter and would allow the use of car type four speed autos or five speed manuals. Anyone have any oppinions on the practicality of this idea? I know anything can be done for a price, but I am thinking along the lines of would this be an easyier way to get an overdrive trans.

[JOECOOL]

Wow a TC divorce sounds pretty harsh. No trial separation first? :D
Actually it would be hard to find a AMC tranny that would make it work. But then anything is possible, just look at Scotty's jeep. I swapped a NP435 inplace of my TF727 on my trailduster. It took almost a year but it was possible. Plan on swearing alot and hide your guns as I was tempted to just put it out of its misery when the clutch pedal just would not work and then when I realized I put the clutch in back wards. :eek:

[Snakeyes_Tx]

The M715 uses a Divorced Mounted NP200, not a Dana 20

[Rande]

You can use the T-700r4 or something that anyway (not sure of the aplha-numerics) with an adapter to your engine. Then use the divorced tcase behind that. Dodge and International used divorced tcases with the front output on the correct side. Not sure if GM did but would not be surprised. I have not done the measurments but you might be able to mount the tcase so as to use the same length drive shafts front and rear, so you only need to carry one spare when out in the boonies.

[Stuka]

The 700r4 is a over drive transmission, but its electronically controlled. So in order to use it you need to have a controller. You would have too use *gasp* a chebby motor with it though. If you have a dana18 t-case, you can buy a aftermarket OD that bolts on to the rear output shaft. But if ya really wanted a project, get a 6sp out of the new power stroke fords, it has granny and OD (:

[Rande]

I'm not so sure the 700r4 is computer controlled. I know that the 4L60E is the electronic version. Both the 700r4 and the 4L60E are based on the turbo-350 design. There is also a bigger od tranny by GM, the 4L80E which is based on the turbo-400 design. There is no reason to need to use a chevy engine, there are adapters available for the AMC engine to GM tranny. If you do go with the electronic trannies, you can get a controller on the aftermarket.

[miked]

<BLOCKQUOTE>quote:</font><HR>Originally posted by Rande:
I'm not so sure the 700r4 is computer controlled &lt;snip...&gt;<HR></BLOCKQUOTE>

Rande is correct, 2 versions, I think its the 4L60E version that's electronic, in any event the 4L60 is the updated version of the 700r4. there is quite abit of info on the 700r4 floating around the net. do a google search for 700r4, you should get a few hundred hits that should give you the info you need.

[jeepbob]

For guys with newer rigs, Ford used a divorced t case with a drivers side drop.

[WillyPete]

gearvendors has these insanely expensive OD units. so anyone out there who has a np208 or nv241 xcase can buy one for the low cost of $2500. i was really sold on these things til the salesperson kindly told me how much it'd be. grrr...

in the end, it's cheaper to just run 3000 rpm on the highway (36" tires w/4.88 gears smile.gif).

[Bob Barry]

<BLOCKQUOTE>quote:</font><HR>Originally posted by jeepbob:
For guys with newer rigs, Ford used a divorced t case with a drivers side drop.<HR></BLOCKQUOTE>

It would be kind of tight on a wagon, though, especially with the fuel-tank coffin sitting right there. The long-wheelbase pickups would have no problem, of course.