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Hey guys, I was researching braces, bushings, and this thread came up. I have a single bolt 21 ST. I bought the Steeda urethane pinion bushing, JXB bushing insert, Steeda "ultimate bolt", DX Suspension diff brace, Steeda subframe bushing support kit. I am installing a mild Ford Motorsports tune...

cool, thanks for the reply.

Good morning all, I have a 21 ST I purchased an upgraded intercooler for. I plan on installing it myself once I get it back from my dealer after chasing this dang howling noise for the last 3 months (see other thread). I am hearing once I install it, I may have to have the parking sensors and...

I am on my 3rd rear diff at 11700 miles. It all started with the howling noise at 65-73 mph. After my dealer replaced my rear diff the second time, along with all the other parts replaced, they contacted Ford Enginners. The second rear diff was for the 2.0 liter explorer, it was mislabeled and...

good morning all, I have a 21 ST, 11,700 miles and going on its second rear diff. car was initially looked at for a moan at high speeds, I have another thread out there regarding this, and the first thing they replaced was the rear diff. Upon inspection, they found chunks of metal and metal...

Greetings all, Just heard back from my service advisor, they are now looking at replacing the front differential! They used “chassis ears” to narrow it down to the noise coming from the diff. Allegedly no contaminants in the diff but who knows. interestingly enough, both front axles have been...

Took it back to the dealer this morning. They had me take the service supervisor for a ride and duplicated it for him. We'll see.

Thanks for all the replies, Wow! that is alot of issues. Anyone else getting the "howling" noise I'm experiencing at highway speeds? 63-65 and 71-77 or so? I had the tires checked and rotated, not it. It almost sounds like a wheel bearing but..... Dealer says they have a device that the can use...

Musclecarman, I just had the rear end replaced on my 21 as well, 10,700 miles. had weird noise/vibration between 71-77 mph. Was told the rear end was full of metal shavings when they inspected it. I purchased the rear diff brace, swaybar bushing kit, JXB inserts, and pinion bushings but haven't...

Greetings all, New guy here, aircraft mechanic by trade, just bought a new/used 2021 ST Rapid Red AWD with 10,700 ish miles. Gold certified Blue seal whatever warranty. Bought it out of town, on the way home noticed a weird noise/vibration at approx 73-77 mph. Wrote it off as maybe turbo...