I have a 2001 F150 with 4" rancho lift and 35's and switch button transfer case. Last week I swapped in 4:56 gears in the rear and I am getting ready to do the front. In order to save as much down time as possible, I retrieved a 8.8 center section out of a same year expedition from the local junk yard. I assumed they were the same, but after comparing them it looks like the only difference is that my differential has a vacuum/electric disconnect., and The differential out of the wrecking yard just has the shield and no actuator at all. My question is can I still swap them? Will it work? I would love to eliminate one more thing to give me trouble or to go out...but not at the expense of bad fuel mileage, worn tires/driveline, or something along those lines. I'm pretty sure I know the answer...but wanted to double check anyway because I am not very familiar with Fords...yet.