**** off smart ***

 

Is it in the brakes? Maybe a caliper sticking?

 

I took them apart and put brand new pads and rotors I doubt it... It might be the u joint every time I pb blaster it in the rear where it goes into the pumpkin it quiets it for a while. But I read that the u joint doesn't make a whining noise that's why I'm stumped and figured someone else dealt with this

 

Did you grease the caliper slides?

 

More of a whining and not a scratching noise ?

What are you hitting w/PB Blaster exactly ? -The U joint or the pinion gear ?

Did this occur right after working on the brakes ?

 

Yes I lubed them pretty good. And it sounds the brakes on a bus when coming to a stop but it kinda echoes that's why I figured it was echoing through the shaft. I spray the u joint. You know the thing shaped like a plus sign that pops into the driveshaft and locks in with the snap rings. I really thought it was brake related but I went over everything with my brakes.

 

could be pinion bearing or something more mechanical then just a Ujoint.

 

I see my post was edited?

 

yes i deleted the spammer that posted in this thread that you quoted.

sorry for the disruption

 

If the noise goes away when you spray the u-joint, replace the u-joint.

 

Any particular socket to get the splined bolts off and do I need a press?

 

You don't need a press, but it can be a PITA - easiest thing to do is drop the driveshaft and take it to a parts store that has a machine shop and let them change them out for you. I'd do front and rear if you are going to the trouble.

 

Oh yea Im going to def do the front and rear I want to do it once and once only

 

its a 12pt 12mm. Try using a wrench instead of a socket. 12pt sockets have the tendency to break easier, especially on a tight/rusted bolt.

Make sure you set the parking brake and chalk the wheels before you take the driveshaft off.

 

IMO both u-joints excellent idea, check drive shaft balance also. I would have added Motorcraft Additive Friction Modifier to rear fluid change.