Does anyone have any info about a wire modification on an a4wd system on a 99 expedition. Someone asked if it was done to my expedition in another thread, and I know nothing about it and did not get a response from them. So i thought id see if anyone might know something about it.

 

If your truck doesn't have a 2WD option on the dial, cutting the brown wire (or putting a toggle switch in) will disable the front drive clutch when it's in AWD so you can stay in 2wd, even with slippage.

Mine has 2wd, so that is all I know.

 

Thaks for that info. Is the brown wire that is to be cut at the switch or at the transfer case or axle?

 

This rather lengthy thread should be able to supply you with any answers for the brown wire mod.
https://www.ford-trucks.com/forums/1...ition-4x4.html

 

Thanks alloro that helped alot.