Aod/aode/4r70 Transfer Case ?'s

[robsredford]

I posted on an AOD board with no response...hope someone can help here... am building a early bronco for a daily driver....on a tight budget
also...I want to run a aod or later electronically controlled version.
Does any one know what transfer cases will bolt up without an adaptor
and still fit between the EB's frame? Please don't say Atlas...remember
budget....I know people will spout off np this or bw that..I need to
know what year vehicles to look for....not needing super gear
reduction...will prolly only be in 4wd occassionally. I will probably
try and find a late model explorer for the drive train...but I
understand that the transfer case in them is not useable for my
application...Thanks ROB

 

[SaddleUp]

The only one I know of is the NP205 which can be found in many 70's Fords. 78/79 Bronco and 1/2 ton pickups with manual hubs will both have the NP205, there are others as well. You can pick them up from wrecking yards for between $100 and $150.

 

[bax]

A picture of an np205 in a bronco frame. Also an AOD.

 

[robsredford]

Thanks, this is the type of info I was looking for. Any others out there?

 

[swa0330]

Rob, I think that you are still planning on a 4BT maybe. Here is my thought if that is the case. I know people knock the 47RE behind the Dodge. I would find a complete drivetrain setup from behind a wrecked Dodge Ram 2500 or 3500 (96-02) and run that. That is the cheapest and easiest setup to put together. No adapters etc. The 47RE isn't a honcho, but behind a 4BT it will hold up. If you put an AOD behind a 4BT, it's going to fall apart faster than the 47RE. I'll put money on that. In time, as you get the money, the total way to strengthen that drivetrain is to get a TripleLok converter from ATS. That will solve everything. Again, I am answering this as if you were still doing a 4BT. If not, then just throw this response to the wind. I have spent a great deal of time reading about all of the people doing 4BT conversions, and the bottom line is KISS (Keep It Simple Stupid) Not calling you stupid at all, but you know that acronym. Best of luck.

 

[robsredford]

Scott , thanks...the 4 bt is for my 68 half cab, the aod questions are for my wifes 74 ranger....but good thoughts on the 4bt tranny options

 

[Slick]

?:?

The NP205 is the best way to go, it bolts up and yer done???

What else are you looking for?? I can't think of ANY T-case anywhere near as stout as a 205 let alone as cheap as an np205!

If you don't want to use the 205 say so and be more specific on what else you want to know... but I'd say yer info search is done, the NP205 bolts up and yer done. only hastel MAY be the drive shafts.

but what the heck else do u need to know????????????????

 

[robsredford]

Slick, I apreciate the info- my search may be over as you say...how does the shifter line up with respect to the original hole when a 205 is behind an aod? what is the ratio on a 205? will all 205s work or just the ones from ford applications? Will the later model transfer cases that came w aod's work?

 

[SaddleUp]

Slick, I apreciate the info- my search may be over as you say...how does the shifter line up with respect to the original hole when a 205 is behind an aod? what is the ratio on a 205? will all 205s work or just the ones from ford applications? Will the later model transfer cases that came w aod's work?

The NP 205 has a 1:1 high range and a 1.96:1 low range. You will need to get a Ford NP 205 to get the correct drivers side drop. They are plentiful in wrecking yards though at very resonable prices. Part of this is due to the fact that the are virtually indestructible. The stock transfer cases behind the AOD will all be too large to fit in the frame rails of the EB. Most of them will also be weaker even than the Dana 20 and many of them use chains that stretch and are unreliable.