The BW4407 is a fixed output? Also I have a 1356 but its my understanding that the output shaft on the 4r100 is different from the older E4OD.
AFAIK, the 4406 as found in your Navigator has been used behind both the 4R100 and the 4R75W. There very well could be a difference in the output shafts but I am not aware of it. For whatever it's worth, my manual 4406 and linkage was from a 2003 F-series and it bolted right up to my 1999 Explorer 4R70W (six bolt, 31 spline).
The BW4407 manual that I have seen has a fixed output and was used in the 96/97 F250/F350's, even diesels, so it should be one badass piece. Unfortunately, they can be expensive and hard to find. I had a line on one but it got away, so I gave up and used the more common manual 4406 instead.
Actually, what I said before is misleading. I mentioned that the 4407 was used in 96~97 because that's what my brother has in his F350 diesel. However, the transfer case has also been used for several years in newer F250/F350's and may possibly go all the way to current production. Using a newer 4407 may help if you find that Ford changed the trans output shaft dimensions. It should also make it easier to find a low miles case.
Even better chance of finding one then. The superduty didnt use the 4r100 for very long if i understand it correctly. Seems like I read something about a 5r100 but I am not sure the differences. I would think if there are shaft changes I should be able to interchange what I need to to get them to work together.
Vehicle: 1999 Ford Ranger XLT Offroad 4x4 Xtended cab
Total Props: 0
Originally Posted by zabeard
maybe mildly, but nothing major. What transfer case is in your SD? Is it a manual?
I still have the electric one because it was easier and more cost effective to use at the time. The 4r100 was used behind 98-04 7.3L PSDs. It's a damn good tranny. The 5r100 has been used behind the '03 6.0L and up. Another good tranny also. I know of dodge guys swapping in 4r100s behind their cummins engines or leaving them in and using an adapter plate to mate the Cummins to the 4r100 when they swap out the powerstoke in the ford.
The 4r100 is nearly bullet proof. With a mildly tuned engine it will hold up just fine in stock form. I have the trans-go http://www.transgo.com/sk_ford.php kit in mine with a BTS torque converter. Holding up really well right now.
'04 F-250 King Ranch FX4
Tuned by Eric@ Innovative: tow, xstreet, xrace
Diesel Site Coolant Filter