My 2wd to 4wd Conversion Project

Dzlnut · Jan 25, 2014

Steering box is diff between 4wd and 2wd also.

fordman2121 · Feb 1, 2014

Dzlnut said:
If the back of your trans looks like this you have the easy transmission to convert to 4wd. Unbolt driveline, remove a single bolt from yoke, remeove yoke and slide transfercase on. You will also need to change spring buckets.

So I looked at mine at its got the 2wd tail housing not the one pictured. Can I still just bolt a 4wd housing on and go then?

Dzlnut · Feb 1, 2014

I'm not sure on that, we need a tranny guru to confirm the tail housing can be swapped.

TrailerHauler · Feb 2, 2014

fordman2121 said:
So I looked at mine at its got the 2wd tail housing not the one pictured. Can I still just bolt a 4wd housing on and go then?

The 4r100/ E4OD needs a different output shaft and tail housing than the 2wd version in order to bolt up a transfer case. Not as easy as the 5r100.

fordman2121 · Feb 3, 2014

TrailerHauler said:
The 4r100/ E4OD needs a different output shaft and tail housing than the 2wd version in order to bolt up a transfer case. Not as easy as the 5r100.

I knew the 4r is different but im talking about my 08 6.4.

sootie · Feb 3, 2014

yes-its six bolts i believe and the tail flange comes off with the output shaft. easy peasy.

capt dong · Jun 13, 2014

grind rivets then grade 8 bolts in the spring buckets?

stonepusher · Jun 13, 2014

When I did my conversion it when I had the 5r it had the 2wd tail housing. Still works the same just remove the tail housing, tail shaft and install new tail shaft, housing and t case

Need the 4wd mount as well

Dzlnut · Jun 15, 2014

capt dong said:
grind rivets then grade 8 bolts in the spring buckets?

Yep, the rivets come off easy if you cut a deep x in the head and pop them off with a air hammer.

Dzlnut · Jun 15, 2014

I did finally finish my project, it all works awesome and I'm very happy with the results. I did change my gearing from 3.54 to 3.73. My 04 6.0 had 3.73 and it towed awesome so that is why I changed.

jello · Jun 24, 2015

I know this is an old thread, but does anyone have the 2wd housing and output shaft they'de like to get rid of from their conversion? I'm going from 4x4 to 2wd on an '03.

Thanks

05wh250 · Jun 25, 2015

Dzlnut said:
Steering box is diff between 4wd and 2wd also.

So did you have to change the steering box? About to do this on an 07.

DZL JIM · Jun 25, 2015

jello said:
I know this is an old thread, but does anyone have the 2wd housing and output shaft they'de like to get rid of from their conversion? I'm going from 4x4 to 2wd on an '03.

Thanks

You don't need a different housing, just the yoke that slides onto the splined output shaft. See the pic up a few posts, it shows this. I wouldn't mess with changing the housing if it was me.

Does anybody know if there is any wiring in the dash to plug-and-play an elect shift t-case? Them things are a dime a dozen, and manual shift cases are nearly extinct.

sootie · Jun 25, 2015

DZL JIM said:
You don't need a different housing, just the yoke that slides onto the splined output shaft. See the pic up a few posts, it shows this. I wouldn't mess with changing the housing if it was me.

Does anybody know if there is any wiring in the dash to plug-and-play an elect shift t-case? Them things are a dime a dozen, and manual shift cases are nearly extinct.

i have a harness here if you want to experiment-just pay shipping.