4R44E 4WD in RWD Truck?

[koleminer20]

Hey guys!

I've got a 98 2.5 auto 2WD, with a bad trans, and I'm wondering if I could take the same year, engine, everything, and use a 4WD trans. I know I'd have to change out the tail on the trans, but I'm just curious if this would work. They're both 4R44Es, the discrepany is in the 2-4 wheel drive. Any help would be great!

 

[adsm08]

Well, you won't find a 2.5L 4x4 trans.

Also, you can't take a 2wd tailstock and slap it on a 4x4 trans and make it a 2wd trans. Similarly you can't take a transfer case, slap it on a 2wd trans, and have a 4x4 unit. The output shafts are different lengths, diameters, and spline counts.

 

[Str8sixfan]

How about if you have a 4x4 tranny, you and I swap trannies. That's what I'm looking for! You can have my 2wd, and I could have the 4x4 one, I'm trying to convert my 2wd to 4wd.

It's my understanding you have to tweak the valve bodies too. I do have the right tailshaft and tailshaft housing to convert my 2wd tranny to 4wd, but there's some internal tweaking that needs to take place too. And I'm scared to do that.

 

[koleminer20]

How about if you have a 4x4 tranny, you and I swap trannies. That's what I'm looking for! You can have my 2wd, and I could have the 4x4 one, I'm trying to convert my 2wd to 4wd.

It's my understanding you have to tweak the valve bodies too. I do have the right tailshaft and tailshaft housing to convert my 2wd tranny to 4wd, but there's some internal tweaking that needs to take place too. And I'm scared to do that.

I'm waiting back to see what this guy wants for it. It's a fresh-ish rebuild with 25k on it. I was curious if I might be able to make it work on my end, but it seems that it's not going to happen. As soon as I find out what he wants for the trans, I'll let you know, and we might be able to work this trade in