Need help from you guys. I just had my truck raised in the front end with the spacer that goes on top of the shock and spring. And now I am hearing like a grinding noise coming from the front.It doesn't do it all the time and if i shift into 4 wheels high it goes away and i can shift back into 2 wheel drive and will not be doing it then either. it just does it like when i stop and take off again and it only does this under accleration......if i let off the gas it quits.....


anybody had this before please help?
keith

 

There are several threads about this problem concerning the vacum solenoids that lock your hubs. Here is one and I'm sure you will find others if you hunt around. Its probably not related to the lift.
https://www.f150forum.com/f4/anyone-04-06-4x4-read-6691/

 

thanks for the reply.....i believe that sounds like what it is ......we just had all that snow over the weekend and i was out in it so it probably got water in it

 

The new part is redesigned so it wont have the same problem.