I got a 99 4.2l f150 that needs a trans. and i got a 97 f150 4.6l witha good trans. but dont know if everything will match up. i think it should bolt up but was told wiring might not match up. any info would be great before i jump into it. thanks

 

Well, assuming that they're both automatic transmissions, they should both have the 4R70W. If that's so, then all 4R70W's are wired the same.

So the problem would not be the wiring, but the actual casing on the transmission. The 4.2L engine 4R70W's use a different casing then the 4.6 and 5.4L motors. The difference being the bell-housing, so the 4.6 trans won't bolt up to the 4.2.

Sorry for the bad news lol, but better you know now than realize it after taking the trans out I guess.

- Erik

 

what about an E40D trans. from what ive read it should bolt up but would it wire into the 99 4.2 because i might beable to check on one from a couple early 90s pickups

 

The E4OD is meant to bolt up to the heaver motors, like the 5.4, 4.6, 6.8 and the diesel motors. So no it wouldn't bolt up to a 4.2.

On the wiring side for the E4OD I'm not sure, but as the E4OD is the predecessor to the 4R100, and the 4R100 wont work with a 4R70W computer like yours then I would guess that no it wouldn't.

Sorry for the bad news again lol.... I would suggest looking for a 4R70W from a 4.2L, as any year 4R70W from a 4.2 would fit for you.

- Erik

 

actually just for clarification reasons the 97 4r70w is different than the later models. the solenoid packs are different which changes all the wiring. the main difference is that the 97 has a power wire for each solenoid and the 98+ has only one power wire. also in the later there is minor differences with internals that make it a little stronger, like hardening of certain parts, improved lubrication and if i remember right one extra clutch plate but i may be wrong on that. they can be swapped but it would be kinda odd to put a inferior trans in. as stated though the 4.6-5.4 will interchange but the 4.2 is only 4.2. GL.

 

The E4OD was used with the 4.9L, 5.0L, 5.8L, 7.5L, and 7.3L. It was never used with any of the modular (4.6L, 5.4L, 6.8L) engines. The 4R100 bolts to the modular engines. If you got an E4OD for a 4.9L, 5.0L, or 5.8L it will bolt to the engine.

The problems are that it is larger and longer. You'll need to get a crossmember from the same truck with an E4OD. You'll also need to shorten the driveshaft. Those are the easy things to change.

You'll need to modify the wiring because the E4OD is very different. Then you'll need to find a computer to run the trans. Ford never made a 4.2L/E4OD so you'll need an aftermarket controller. You should be able to get one for somewhere around $500-$1000.

 

You got it for the most part. The harder parts came first for the 5.4l version though.

Darrin

 

Hmm, well thanks for correcting me Mark. I guess I was confused since I'm always hearing people say they have an E4OD on a 5.4L, but I suppose they meant a 4R100. Makes more sense that the E4OD is for the older ones and 4R100 for the modulars though.

I still think the easiest option would be to find the newest possible 4R70W off a 4.2L F150, since it'll be a direct swap. Even if the newer ones are 4R75's (which they could be?) it's just a matter of repining the connector isn't it?

- Erik

 

guess itll be easier to get one from a 4.2 the reason for wantin to try the E40D is because i can get one for next to nothing. thanks for the help