Rear Diff
#1
Junior Member
Thread Starter
Rear Diff
Hey Guys, well my rear end is going out on my 06 fx4. i have the 9.75" rear end with 3:73 gears, does anyone know whats a good parts to replace with?
#3
Senior Member
Give us a good description of the noise. Its probably a bearing going out, or maybe even just the factory posi clutches starting to chatter/squawk. Actual gear failures are rare. To replace the bearings and clutches (if equipped with a posi) will typically run about $500 at a good shop. For bearings, I buy Timken almost exclusively. If it needs clutches, get them from Ford.
#4
Mark
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#8
Junior Member
Thread Starter
the pinion seal went out a few years ago. I changed that, it started a slow leak about a month ago, and the grinding noise has gotten progressivly worse. had 2 different mechanics listen to it. one from ford. both said needs a rebuild gears and bearings. its not slipping, just makes a metal on metal grinding noise.