Rust Experts needed

[DukeCanBuildit]

True but, if I were to replace my UCA’s then I would change over to the aluminum ones in a heartbeat

I have the aluminum units but would switch if I didn’t, simply because they’re so visible and I’d be envious of those who had aluminum. With new UCAs, that change would be a must-do.

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[SloDriver]

This was my truck with less than 600 miles on it... CA owned, not even two tanks of gas in it. What do you think of that?

 

[HenryMac]

This was my truck with less than 600 miles on it... CA owned, not even two tanks of gas in it. What do you think of that?

Has somebody been driving it in salt water?

 

[DukeCanBuildit]

This was my truck with less than 600 miles on it... CA owned, not even two tanks of gas in it. What do you think of that?

I think a lot of us owners in northern areas, where salt and brine are heavily used, are snickering a bit at the level of shock and surprise from some of the posters on these threads. Especially from those wondering how their CA and FL trucks could possibly have rust.

Take a couple of deep breaths, it’s just a bit of surface rust that isn’t affecting the strength or integrity of the affected parts to a degree that is a concern.

From the second your truck left the assembly plant, it had plenty of exposure to the environment and corrosive elements before you took delivery - - - the assembly plant parking lot, the rail cars, vehicle haulers, test drives, the dealer lot, etc., etc. So, unless your truck was blister-packed after assembly and shipped in a covered trailer, it could easily have some surface rust on the underside.

Even if it showed up in pristine condition, every time you drive your truck, on pavement, dirt, or gravel, you subject it to a sandblasting that slowly strips areas of the painted parts on the underside of your truck. If your tire throws the odd rock or two, that can result in much deeper scratches in protective coatings.

Rust happens.

Especially when you live on the coast.

 

[Cape Cruiser]

There are some alloys of steel that actually get protection from surface rust. Cor-ten is one of them

 

[DukeCanBuildit]

There are some alloys of steel that actually get protection from surface rust. Cor-ten is one of them

I understand this to be the same with construction I-Beams and that it also helps rebar bond better to concrete.

 

[litalien26]

I have a 2020 and the knuckles are aluminum.

Same thing here...2020 with aluminum

 

[Steve23]

I understand this to be the same with construction I-Beams and that it also helps rebar bond better to concrete.

I always wondered why rusted rebar was so common on construction sites. I figured that couldn’t be good but then again I saw it everywhere. Thanks for my fun fact of the day Duke

 

[DukeCanBuildit]

I always wondered why rusted rebar was so common on construction sites. I figured that couldn’t be good but then again I saw it everywhere. Thanks for my fun fact of the day Duke

Oh man, thanks for calling it a “fact” - I had to go look it up. ?

“Because most steel grades used in construction will develop a surface layer of rust, the steel is designed to not pit. A lot of these steel grades are considered ‘weathering’ steels and are recommended specifically for exterior exposure applications. Surface rust has very negligible dimensional effects on the member and covers the exterior in a rust layer that blocks oxidation and rusting of the steel beneath.”

Go figure!

 

[Steve23]

Oh man, thanks for calling it a “fact” - I had to go look it up. ?

“Because most steel grades used in construction will develop a surface layer of rust, the steel is designed to not pit. A lot of these steel grades are considered ‘weathering’ steels and are recommended specifically for exterior exposure applications. Surface rust has very negligible dimensional effects on the member and covers the exterior in a rust layer that blocks oxidation and rusting of the steel beneath.”

Go figure!

I trusted you and you didn’t let me down!

 

[2.7EcoBoost]

FWIW not trying to get in a pissing contest here but cast iron would fracture easily under a shock load and cast steel would tend to bend and not break off. All manufacturers are seeing this type of rust and many of these components will outlive all of us. Poor OP posts and thinks he made a 35K bad decision buying his truck over posts of maybe wrecked or ebay parts or passing off as improvements. Many anti corrosion sprays out there as some have posted. Opinions are like brown eyes-everyone has one. Best thing for Op is to let dealer look at it to ease his mind. My 19 has aluminum and my 20 has cast steel . Im sure as @Duke has stated due to short supply of aluminum during covid and tarriff negotiations.

Well, since it's not a pissing contest, you have cast iron knuckles not cast steel. I don't even know if cast steel knuckles exist? Are you 100% sure on that? You know what "they" say about opinions and brown eyes right? Forged steel knuckles are stronger and do exist. Cast iron has been used without issue for years on steering knuckles.

 

[SloDriver]

Unfortunately this was my first “new car” I’ve ever bought. So I was dumb for thinking that when you buy a new car it doesn’t necessarily mean your getting a new car. It was in the same lot as all the other new cars. I’m a little confused by the whole thing.

 

[t4thfavor]

This is the best thread if you’re reading this north of Tennessee and the worst thread if you’re reading it south of there.
Cast iron is what they are, you could bury them in a field for 25 years and they could end up with some minor rust flakes and be just as strong as they are now. Nearly every car made before 2010 has cast iron knuckles as well as a bunch of other cast iron parts underneath. Not very much cast steel because the carbon burns out if it’s exposed to oxygen. Anyone saying there are cast steel parts is most likely confused with forged or machined (or both).

 

[Strokerduster]

A new power transmission line is being run down the road from me. The power poles are being lifted with helicopter in sections. The factory finish is rust. When I asked about the rust, they said it was done that way intentionally and will last considerably longer than any other applied coating. Apparently it has become a thing.....

 

[Cape Cruiser]

Well, since it's not a pissing contest, you have cast iron knuckles not cast steel. I don't even know if cast steel knuckles exist? Are you 100% sure on that? You know what "they" say about opinions and brown eyes right? Forged steel knuckles are stronger and do exist. Cast iron has been used without issue for years on steering knuckles.

Steel is the main word here whether forged or not . I have never came across cast iron on them. I have modified and welded spindles and pitman arms and idler arms many times and with the process iron would be porous and not weld real well. Iron would weld with inconnel rod but would be prone to cracking under shock load. I think you will find that some are steel and some are iron.

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