Problems with 2000 Ford Explorer Front End Driveline (Locking up)?

it think your problem is actually in the rear end the explorer's had alot of limited slip differentals put in them, the clutch packs wear out and lock up, causing a jerking or grinding feeling when you back up, to remedy this problem sometimes you can replace the fluid and put new friction modifier into it, and they will work again, but most often you have to replace the clutch packs.

I wound up selling the vehicle, but it was definitely in the front end. The left front wheel would wind up like a spring when backing up when the steering wheel was turned ever so slightly one way or another. It happened only in reverse and the you could only back up about 6 feet before it would lock up solid. When you traveled forward just a little bit it would break loose with a bang. As if the front axle shaft was torsionally loaded and something finally let it normalize. I surmised it was a problem with the clutch pack in the front diff but due to some more serious issues with the engine I decided it was best to broom it and find another vehicle. Which was a stroke of luck really. I found an amazing deal on a Limited in near showroom condition for pennies on the dollar!

there's a small installation to place on it.connect your grease gun a fill it up with grease until eventually you spot them popping out to a rubber housing. in case you prefer an easy one, ask the mechanic to do it for you and watch him how he does.