Is your 4406 loud?

[Trolling]

i was looking at this thread a while ago.

Got the DS for the 96 sport to use the flange for my t case.
Found in the pile o driveshafts a perfect length front driveshaft for a Heep Grand Cherokee. The U joints are the same and it has a stock double cardan, but it uses a different style to connect to the t case
I am going to transplant the flanged double cardan from the Explorer driveshaft to the heep driveshaft. No need to get it shortened and it should work. I got both shafts for $81, so I should have a perfect front d shaft for not much cash. And as a bonus the heep front d shaft diff yoke is the same as my D35, so I don't need a conversion u joint.
From the top down:
Stock AWD D shaft
F150 D shaft cut down a little bit
Jeep front d shaft
Explorer Rear d shaft

End shots same order just sideways - notice the jeep shaft has a different connection for the T case

Yoke Comparisons: Left to right
Jeep
Stock D Shaft
F150 shaft with conversion joint

Ford D shaft some what taken apart

Ford flanged piece

Jeep double cardan

U joints- AZ only had these three. The brute force went in the middle u joint because it is impossible to get a grease gun in there anyway. The other two have zurks.

Completed Double cardan

Completed D shaft

Comparison shot- the DC driveshaft is about 1/4" longer than my cut down F150 shaft. It just barely fits between the diff and T Case, but it is not bottomed out.

Last picture- bolted up rear angle

I am running 3 of the stock size u joints for my truck on a Jeep Grand Cherokee front D shaft with the double cardan from a Ford explorer sport.
No cutting or welding. Just a bunch of damn rusty u joints and 3 new ones. I took pictures but wont be able to upload them until tonight.
I took it on a road trip and no noise at all. At certain speeds a very small vibration in the floor, I suspect that is from the weights I left on the driveshaft. Now that everything is different, I don't need them.

The only people that need this are those with the 4406 AND a suspension lift. If you dont have any suspension lift a stock F150 driveshaft with a conversion u joint will work.

note the last paragraph. this is my setup; no lift whatsoever, f150 front driveshaft with the conversion u joint balanced by a driveline shop.

I know there are a few members here with the same setup as mine. question is, is your front end driveline giving you problems too?

 

[CDW6212R]

I don't know what percentage of other conversions have a vibration that has been mentioned. I think it's more than has been reported.

I took Evan's very helpful thread as a suggestion that a vibration would be common. That's why I had mine built with the DC joint. It is expensive though to get work done on a driveshaft, meaning you need to only do work on it once.

Hopefully that would be the answer to yours, but as said, the pinion angles may be the issue. Rotating the front diff, to lower the back might help as much as a special driveshaft. It mounts with three bolts to the frame, plus three bolts for one bracket for the rearmost frame mount. I wonder if some lowering is possible by adding a spacer of minor thickness to the rear frame mount. I will look into that when I get to mine soon also.