No problem, if all of this rambling helps one other person than its worth it. I think there could be some other better option for the 4WD system than a little vacuum line.

As for the pull, yes, when i took it for a drive when the system was working, the pull was gone, i still got the crown in the road pull on certain roads, but the constant pull is dramatically decreased, i wont be able to tell for sure until i get the system completely fixed and am able to drive it for a couple days. The steering wheel is more free, the truck feels like it has more power. The truck drives smoother, and quieter. Its going to feel like a completely new truck. I just got the truck last June and this is my first ford truck. I always have felt like during normal acceleration that something was holding my truck back, i always had to mash the gas to get it to go on normal acceleration. But now i can attribute all that to my truck in a sense "pushing" the front tires to turn all the front driveline components. Maybe thats why it seems like my ATs are so noisy. I took them off for some regular tread. Ive also read that when the driveline locks up like this that it could decrease the gas mileage by 2-3 mpg, if that is true, i got 16 mpg on the last tank during my normal driving around, i could possibly get 18-19 driving around town with my 4.6

The more i think about it, what is the vacuum box actually doing anyway? I know it hold a reserve of vacuum, but there are two check valves in the system one on each side of the vacuum box, so what ezactly would it hurt if the box was taken out? i know i did it before and it didnt work, but that was before i found out my check valves were shot.

Im going to draw up a little vacuum line diagram to show all you guys the whole system for those who havent looked into it.

 

Im not going to post anymore in this thread, i have been double posting in two threads that i started, if you would like to follow, please view further progress in this thread.

https://www.ford-trucks.com/forums/8...the-right.html

 

My 1998 had front brake dragging issues for years until I fixed it. Someone had torqued down the slide pins without a backup wrench to hold them in the proper rotation. Which caused the binding!!!
I explained the procedure to my mechanic when he replaced the pads and rotors earlier this year. The dragging began again last week on a long run.
I crawled under the truck and sure enough the pins were ganked over NOT BACKED UP, causing them to bind up after time. I backed all four off slightly and torqued them into the proper position and they work fine now.
It’s a VERY EASY SITUATION TO OVERLOOK and I believe it has caused a lot of calipers and rotors to be chewed up!