Can anyone tell me what this is (part failure on axle)......?

[notabot]

@Ford Motor Company --- How is the wheel is being held onto the axle after the bolt head snaps off. Are we really relying on the press fit and some kind of seal or pressed on bearing within the rotating assembly?

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[ARegularJoe]

Does anyone have the torque specifications for those axle retaining bolts? ML3Z19S426A? (BIG ASSUMPTION those are the ones that apply to Max Tow Axles that are being built today)

 

[ARegularJoe]

@Ford Motor Company --- How is the wheel is being held onto the axle after the bolt head snaps off. Are we really relying on the press fit and some kind of seal or pressed on bearing within the rotating assembly?

I would presume that the only thing, really, that's holding that hub in place is the brake caliper assembly which would likely cause undue wear on the Rotor, Pads, Caliper and Caliper mount.

 

[ARegularJoe]

I just visited the local Ford parts department. 3/4 float axle is unchanged from MY21 so it appears Ford isn't rapidly looking for a fix. Additionally, Ford shows the axle and stub as one piece. Parts book still shows the weak retainer bolt separately? Why? If the parts are not serviceable, why even list that bolt? If the axle and stub are considerred one part, why is the bolt even required? If the axle and stub are one part, why are so many trucks being put into dealer impound waiting for two parts sold as one?

The mind boggles.

 

[hotrodmex]

I just visited the local Ford parts department. 3/4 float axle is unchanged from MY21 so it appears Ford isn't rapidly looking for a fix. Additionally, Ford shows the axle and stub as one piece. Parts book still shows the weak retainer bolt separately? Why? If the parts are not serviceable, why even list that bolt? If the axle and stub are considerred one part, why is the bolt even required? If the axle and stub are one part, why are so many trucks being put into dealer impound waiting for two parts sold as one?

This axle quite likely doesn't need a redesign. I could be just batch of bolts with bad heat treat, or over-torque on assembly. I'm pretty sure we have yet to see a 22 with the failure.

Also, Ford regularly lists parts in the public catalog as assemblies, when you can get the parts separately using resources like the Service Manual. I remember seeing someone who posted the repair instructions, thought it looks like I failed to bookmark or save.

 

[ARegularJoe]

This axle quite likely doesn't need a redesign. I could be just batch of bolts with bad heat treat, or over-torque on assembly. I'm pretty sure we have yet to see a 22 with the failure.

Also, Ford regularly lists parts in the public catalog as assemblies, when you can get the parts separately using resources like the Service Manual. I remember seeing someone who posted the repair instructions, thought it looks like I failed to bookmark or save.

Interesting,. Well the gentleman behind the parts counter showed me his view and it clearly showed the axle and hub as one part and number along with the axle retainer bolt with its own part number. The drawing and parts list made it pretty clear.

RE: No issue on MY22, I hope you are correct. I've read when some folks have experienced the failure in the first 10K and I have about 2K to drive after I pick mine up in IA.

And I think it's a crime that Ford charges a subscription to owners for service manuals. They were expensive enough through Helm years ago but at least that felt like value.

 

[jofo]

My axle was replaced several months back because I had a loud creaking noise any time it was out under load. I brought it in and they were able to reproduce the sound right off. The dealer contacted ford engineering and without hesitation, we’re told to replace the axle immediately. I was one of the early ones, so I was lucky in the respect that the part came in earlier than planned. It was to take a month but only took a couple of weeks. I forgot to mention that I have a 21 PB Lariat with max tow.

 

[notabot]

My axle was replaced several months back because I had a loud creaking noise any time it was out under load. I brought it in and they were able to reproduce the sound right off. The dealer contacted ford engineering and without hesitation, we’re told to replace the axle immediately. I was one of the early ones, so I was lucky in the respect that the part came in earlier than planned. It was to take a month but only took a couple of weeks. I forgot to mention that I have a 21 PB Lariat with max tow.

Do you know the manufacture date?

 

[Pedaldude]

Mileage at failure will help too.

 

[afroken3130]

Does anyone have the torque specifications for those axle retaining bolts? ML3Z19S426A? (BIG ASSUMPTION those are the ones that apply to Max Tow Axles that are being built today)

I couldn't find anything official, but it is a 10.9 M12 fastener. Most torque tables put that at 85-90 ft/lbs. That what I used for mine.

 

[ARegularJoe]

I couldn't find anything official, but it is a 10.9 M12 fastener. Most torque tables put that at 85-90 ft/lbs. That what I used for mine.

Thank you

 

[Kit]

Add.us to the list. MY21, PB 4x4. Have done 0 towing. Noticed “the sound” at the 15k mark. Picked up in aug last year. Truck being held for now. MTF…

 

[Yellowjackets369]

3 weeks ago i had my 21 PB at the dealer for this exact issue. It took them 3 weeks to get it back to me after originally ordering 2 passenger side axles vs 1 for either side. Then after driving the truck for 1 day, the axle failed again. so my truck is back sitting at the dealer.

 

[GadgetB1]

Well I just got the call I have the same issue, passenger rear, 21 PB, Job 1 truck (think May-June 21 Build date) ~16k miles at the time I first noticed the noise, ~18k miles at the time of service. Don’t judge me to harshly but I was busy lol. I didn’t have any wobble, only sounded like a dragging brake, only made the squealing noise under light braking or acceleration. Heavy breaking and the noise would stop and some times I wouldn’t even hear it on acceleration. So I thought it was a dragging brake or stuck caliper that wouldn’t fully retract. I was wrong, lol. They have the axle but the bolt won’t be in until next week. Beau Townsend Ford in Vandalia, Ohio has been great!!

 

[Ford Motor Company]

3 weeks ago i had my 21 PB at the dealer for this exact issue. It took them 3 weeks to get it back to me after originally ordering 2 passenger side axles vs 1 for either side. Then after driving the truck for 1 day, the axle failed again. so my truck is back sitting at the dealer.

Hello there! I'd like to take a closer look at your truck's axel issues. Could you please send over a private message with your VIN and the name/location of your local Ford dealer to get started?

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