I retired from a class8 truck manufacturing plant and there were critical processes that engineers spent a lot of time laying out. Guys would shortcut them sometimes and maybe it seemed to be a non-issue but I would watch warranty reports from the field and the reasons for the processes would show up. The internet is very educational but be thorough when you research a repair.

 

"Makuluccos" brings up some really good points. most likely no frame protection or weekly washings while running in a Winter anti ice area. Frame Cancer is a deadly business. My take is body off, new frame and complete restoration project for the Ford truck lovers after sitting in a field for 50 years !

 

you really don’t feel it’s rough till you remove the Caliper ! all that rust fell out of there, the dark spot is wet brake clean spray ! It gets new rotors also. back side has some marks of wear on them. Pads are great shape. 102,000 miles 2 W.D. Those huge brake Calipers and pads hide the bearing problems ! They support the load. but the wear on the back side of the rotor is there. Not terrible, just noticeable on inspection. I can find no fault with those stop on a dime brake calipers, magnificent. The thing with the spindle is it will let moisture and dirt in because it it not sealed from it. The spindle needs a weather tight seal on the back side is a no brainer. The bearing has a cap but the Knuckle is wide open and of a smaller diameter in its middle area to hold the bearing. Sure bean counters left that out. The knuckle area where the bearing bolted onto looked exactly like the spindle bearing does in the upper picture. That area got Moly grease after cleaning just because, it will have to be replaced again in Turbo's driving life time most likely ! Thing for me about this job wasn't the bearing, it is a pita but that huge brake caliper is amazing !

 

This also exists from Ford ! IWE

http://www.fordservicecontent.com/Ford_Content/vdirsnet/TSB/EU/ (oemdtc.com)

 

Done ! 4 1/2 hours and new rotor also. Like the Drilled and Slotted, thas my choice. Driver side most likely next summer but you never know, the passenger side gets most of the abuse !

 

PT, so you just had a bearing go out? How timely eh.

 

It was about a month of Hell after hitting that pot hole on a bridge that now is covered with a 1" X 4' X 8' hunk of steel plating until That 3' wide 1' deep hole get repaired. Put new tires on Turbo's and front end alignment to make sure ! Those bearings are in short supply is what they said ! Truck is now silent at 55 mph. Yeah. May was hell. I noticed this thread and thought why not contribute if I can ! Most likely all vehicles have the same problems. Would seem The F150 has its share ! Yea I am going thru the Kia Sorento toward the middle of the month, same problems with its front end. 140,000 miles. The little woman doesn't want to trade it for a Jeep or Maverick. Oh well its only a lil work to please her ! Yea ! These front wheel bearing are very tricky and also maybe very bad news if you can't hear the Radio without turning up the sound above 15 to cover the "Tire noise" Good wheel bearings and whisper quiet in the cab again !

 

Treat Turbo's right and He's good to go !

 

Well, you had some good info there. I think that's the first time I've ever seen your truck.

 

The way that right Bearing corroded into that Aluminum Knuckle, it was very hard to get loose & it proves to me that living in a a spray anti Ice onto expressway, especially bridges and off ground ramp areas are hard on them. + those 2 deep chuckholes that passenger side hit ? That Knuckle was snow & rusty white with Corrosion.

 

Ya, that crap really wrecks havoc where ever you've got aluminum and steel mating. I had aluminum strut spacers, and steel top hats on my '12. One winter, and I had to cut them off the tophats. Not good.

 

I coated all mating surfaces with Moly lube on assembly. Hope that helps 5 years from now when they got to be replaced again.

 

I just talked to the mechanic who's working on my truck. He found that the front axle shafts were turning backwards in 2wd mode, hubs disengaged but something wrong with them causing that which makes the spider gear noise. Front differential is damaged now so it has to be repaired also.

 

The good thing is, it's getting fixed. Good luck

 

I'll be the first to admit, that sometimes it's been shown, that a stick can be smarter than me. It would seem though, that something was turning the diff, and maybe I'm wrong, don't think so, that would indicate one of the IWEs was either engaged, or broken and jammed up somehow, turning one of the halfshafts. Since this is an open diff, the other halfshaft would be turning backwards when in 2H. Think of a rearwheel drive diff on a car, get both rear wheels off the ground, turn one of them, and if open diff, like our fronts are, the other side will rotate opposite.