Have Ford Questions? Ask a Mechanic for Answers ASAP
Hi Sir or Madam, I am John Mc, a Ford dealer technician.I hope I can help solve your problem quickly and accurately.
Is it the rear diff that is bad or the transfer case? Also what is the symptom of the problem so I can better estimate for you?
This is usually caused by binding differential clutches in the REAR differential. This is a very common problem. To fix first just try changing the gear oil and add two bottles of Ford friction modifier. When done go to a parking lot and drive in 10 tight circles to get the clutches working correctly. This is around a $100 to $150 repair. If this doesn't fix it the rear end clutches will need to be replaced. To do this it is around a $600 repair because the diff has to be removed.
If you have any more questions please feel free to ask, it's what I'm here for!
If this answer has been helpful please accept so I can receive payment. Feedback is very
important to me so please leave accurate feedback for others to see my job performance.