Swap 4R70W to replace 5R55 in 02 2WD Explorer

[racprops]

Found a path to replace my sick 4.0 V6, swapping in a 4.6 V8 from another 02 Ford Explorer.

One mismatch is the 5r55 on the 4.6 V8, it is part of a 4WD system. My 02 4.0 V6 is a 2WD.

So my 5R55 is a V6 2WD transmission so will not bolt up to a 4.6 V8.

So as I will need a transmission. As much as I liked the 4.0 and 5R55 5-speed I am too well aware of its rep for failure.

SO I am planning putting in a 4R70W 4-speed because of their Reps and I have a buddy that rebuilds them.

So my $64K question has anyone done this swap?? I would love help in doing this swap.

I believe I will need reprogramming for the PCM from the 5-spped to the 4-speed.(I hope)

And perhaps a new transmission mount?

And I fear a custom drive shaft.

Rich

 

[Fix4Dirt]

4r70w iirc will not bolt up to these motors, it goes behind a 5.0 or 3.8, the 5r55 series and the 6r series iirc will bolt up though. i do think its easier to make the 4r70w run standalone and then program the trans out of the pcm, not too sure if stock PCm can work w the 4r

edit: realized this is a dead thread

 

[Josh P]

4r70w iirc will not bolt up to these motors, it goes behind a 5.0 or 3.8, the 5r55 series and the 6r series iirc will bolt up though. i do think its easier to make the 4r70w run standalone and then program the trans out of the pcm, not too sure if stock PCm can work w the 4r

edit: realized this is a dead thread

Killing me smalls. He was asking about swapping transmissions while swapping engines. I'm wondering if any of the vehicles that had a 4.6 and 4R70W could use the pcm in the explorer?

 

[Fix4Dirt]

Killing me smalls. He was asking about swapping transmissions while swapping engines. I'm wondering if any of the vehicles that had a 4.6 and 4R70W could use the pcm in the explorer?

ohhhhhhhhhh i see! there were combo that used the 4r and the 4.6? is that the vic?

 

[Josh P]

ohhhhhhhhhh i see! there were combo that used the 4r and the 4.6? is that the vic?

Crown vic, mustang, F150 are a few I can think of. I'm wondering how racprops is doing? Haven't seen him on lately

 

[Fix4Dirt]

Crown vic, mustang, F150 are a few I can think of. I'm wondering how racprops is doing? Haven't seen him on lately

i didnt know a stang came with the 4r70w behind the 4.6! good to know. and yeah, havent seen any posts lately

 

[Josh P]

i didnt know a stang came with the 4r70w behind the 4.6! good to know. and yeah, havent seen any posts lately

The 96-04 used the 4r70w in the v6 and v8 mustang. Same unit in both, the 95 and older v6 4r70w was weaker than the v8 version.

 

[410Fortune]

The 4r70w was used behind the 4.6 and 5.4 even in trucks f150 and expeditions even some f250