Our GS has a 2000 Ford 150. He has a gringing metal sound comming from the rear axle. He Jacked it up and turned the tires manually and said it was really Bad. This is his first Vehicle which I bought him a year ago. Any Idea's will be appreciated.
Harold and Faye US Navy Retired
2006 Fleetwood Revolution 40LE
Differential, could be wheel bearing, carrier bearing, or inner or outer pinion bearing. Badly fractured spider gears, or huge chunks missing off the ring or pinion can make the noise as well. A U-joint that makes a grinding noise will usually be findable without dropping the driveshaft.