Recent content by butt_yodel

fortunately, it is being looked at under warranty. otherwise I would definitely be pulling it myself

yeah, I showed the dealer this and reproduced easily with some brake torque

not yet. developed an axle click in the past few weeks, getting the rear driver axle and wheel hub replaced soon. probably completely unrelated. gonna throw some thicker fluid and/or friction modifier in soon

I switched to a JXB carrier bearing and no change

Is your ST AWD?

They seemed OK, I will check again. No noise when switching to neutral, no change in pitch when turning, so I had ruled them out.

Hi guys, I have a harmonic noise in my rear diff area that the dealer can't find. We have replaced the diff twice, and the driveshaft once. Gonna kind of ramble here, don't know what's relevant, but y'all are pretty smart on here. It sounds very similar to this: Hellcat rear end whine. It...

I’m sure some noise is normal and not cause for concern. For what it’s worth, my ‘22 was dead quiet with the same setup. The noise I’m encountering on the ‘23 cuts through radio and exhaust and lives in your head rent-free. 60 mph is a very unfortunate spot to encounter the issue consistently.

Small update for future readers. Replaced the OEM carrier bearing with a JXB and it made no difference. Driveline feels tighter though, cool mod (y)

Upgraded with the JXB carrier bearing today. Noise didn't get any better or worse. I can definitely feel the driveshaft now, though. I'd imagine that's expected and doesn't bother me much.

Just had my timing cover replaced on my ‘23 too. Dealer happened to catch it while doing plugs. Doesn’t seem to be very common.

Interesting tidbit... the howling is completely absent when it's cold out. It's generally louder the nicer the weather is.

Dealer told me they do tear down the diff, just replace the entire unit and send it back to Ford. Wasn't able to get a good answer.

Follow up to this... I had the rear end replaced again. Both replacements started howling from the second they were installed. No solution yet.

Anyone figure out the howling from the rear diff? I'm on rear end #3 at 18000 miles, they keep finding metal in it and replacing it. 2nd driveshaft too... first one was eaten up. Brand new diffs are howling the second I drive it off the lot. Throwing a driveshaft carrier at it soon.