Thanks for your help.

My f150 4wd slips when the trans is shifting into overdrive,it will complete the shift if you let up on the gas. Any ideas

Well all of you are right, the swap would be a large hassle. My King Ranch Super Crew does have a 3.73 limited slip diff but all that gets tossed anyway as both front and rear diffs from the Expedition would be swapped as well as the entire front suspension,trans and transfer case and the...

Sounds like coil packs to me I would do an ohms test on them just to make sure. A new one could be bad especially if aftermarket. If you do it yourself it doesn't cost anything but time. My 5.4 did this and after a week it finally threw a code # 8 cyl misfire

I want to take the entire 4wd out of my 97 Expedition and install it in my 03 King Ranch Supercrew 2wd. Other than alot of work will it fit. Any insight appreciated , yea I know it seems like a waste of a good Expedition.