Rear end grinding

[TexasR.N.]

Howdy all,
I towed a stock trailer with a quarter horse in it over the weekend. Total trip as approx 250 miles. Half way into my trip I started hearing a grinding sound when I would turn. Seems to be more prevalent in a right hand turn. I would also hear it when I started moving from a standstill going straight forward.

I am planning on change the fluid, I am concerned that I might have a more serious issue going on. So do I change the fluid and see if that resolves the problem, or do I take it in and have a mechanic look at it?

99 F-150 5.7L 2WD Ext Cab 227,000 miles, no mods.

Thanks,
Craig

[chiefenterprises01]

I think it will be good to take it to mechanic and other automobile professionals. If you change the liquid of yourself you and i don't know what will happen. So take it to the mechanic and follow his advice.

Chief Enterprises | America's provider of Bosch Relays, Solenoids, Connectors, and Diodes

[StarDriver]

I gonna say the pinion bearing is going, my Roush sounded like that, except it went at 14,000 miles.

[TexasR.N.]

I had one guy say that it was the clutch packs for the limited slip. Does this sound right? I don't know squat about rearends (Choctaw is the real expert here).

Craig

[rdc]

Craig,
Do I have to tell you what came to mind when I read the title of this thread?

[lifewitlooie]

take it to the mechanic

[StarDriver]

Originally Posted by HappeetxnR.N.

I had one guy say that it was the clutch packs for the limited slip. Does this sound right? I don't know squat about rearends (Choctaw is the real expert here).

Craig

It may be those also, sounds like you'll need a rearend rebuilt.

[GoldieStroker944]

this sounds like either carrier bearing or axle bearings something like that but i highly doubt changing the fluid will do anything just take it in they are not hard to fix but if u dont know what your doing then just take it in

[Dirk]

Post what the tag says. It should be bolted to the rear cover.

[Broncoguy]

If it were mine, I would pull the rear diff cover and have a look. I have seen a lot of ford rear ends have issues with the ring gear bolts backing out. It doesn't cost you anything more than some silicone and gear oil. Just my .02