Sponsored

Louis

Well-known member
First Name
Lou
Joined
Jan 10, 2021
Threads
1
Messages
124
Reaction score
22
Location
NW Pennsylvania
Website
www.enormis.net
Vehicles
21 F150 Crew 3.5 Lariat Sport 502a 6.5bed FX4
Occupation
Biz Owner
This mainly addresses AFTERMARKET items being installed. Splash Guards etc.

Many already know this, I am just the messenger.

March 16, 2021 Information courtesy of Mitchell 1

This bulletin applies to 2015 and later Ford F-150 trucks that feature aluminum bodies. When installing aftermarket equipment, be aware that aluminum can corrode when mated to steel, as dissimilar metals can experience galvanic corrosion. This can occur when there is contact between different metals, such as steel or stainless steel fasteners. When installing aftermarket equipment, it is necessary for the installer to pay special attention when drilling or clamping dissimilar metals to the aluminum body.

Anytime the factory paint is damaged/disturbed, it is recommended that the paint is repaired with a suitable coating prior to installing items such as splash guards, bug shields, tool boxes, etc. When installing fasteners into the mounting hole, the fastener should not have contact with the aluminum sheet metal (no interference fit to the hole). When using zinc coated steel bolts or screws, an aluminum washer should be installed. For further protection, an isolation layer should be used between the two dissimilar metals. When clamping onto the truck, a polypropylene or urethane tape can be used as an isolation layer. Ford-approved anti-corrosion coatings include Motorcraft PM13-A, NOX-Rust 7703-W or Zinc-Rich primer.


Ford F-150 Lightning Aluminum body corrosion warning when installing aftermarket parts on F-150 Aluminum Body Warning for Ford F150

An example of a steel bolt securing a steel item to an aluminum body panel. Note the air gap preventing the bolt from contacting the aluminum, the aluminum washer between the nut and aluminum and the isolator layer between the steel component and the aluminum body.

https://www.autoserviceprofessional.com/articles/8940-aluminum-body-warning-for-ford-f-150?
Sponsored

 
Last edited:

Coolrain

Well-known member
First Name
Marcus
Joined
Nov 22, 2020
Threads
1
Messages
160
Reaction score
14
Location
NJ
Vehicles
2021 Raptor
? Sooooo Ford does know about anti-corrosion coatings!!!!! Maybe they should think about applying this to the bottom of their trucks!!!

"Ford-approved anti-corrosion coatings include Motorcraft PM13-A, NOX-Rust 7703-W or Zinc-Rich primer."
 

Rich55Marshall

Well-known member
First Name
Rich
Joined
Dec 10, 2020
Threads
3
Messages
97
Reaction score
33
Location
New Hartford, CT
Vehicles
'21 Platinum PowerBoost 4X4
Occupation
Retired custom picture framer & Apple Expert
Ford F-150 Lightning Aluminum body corrosion warning when installing aftermarket parts on F-150 Screen Shot 2021-03-20 at 8.21.17 AM

I wonder how this applies to the Ford mudflaps that I was planning on getting from my dealer next week.
 
OP
OP
Louis

Louis

Well-known member
First Name
Lou
Joined
Jan 10, 2021
Threads
1
Messages
124
Reaction score
22
Location
NW Pennsylvania
Website
www.enormis.net
Vehicles
21 F150 Crew 3.5 Lariat Sport 502a 6.5bed FX4
Occupation
Biz Owner
Screen Shot 2021-03-20 at 8.21.17 AM.png

I wonder how this applies to the Ford mudflaps that I was planning on getting from my dealer next week.
I got the ford factory plastic molded splash guards for my truck and there is no drilling required. Fyi
But I'm not too sure about those!
 

Knickell

Well-known member
First Name
Kyle
Joined
Aug 1, 2020
Threads
31
Messages
2,590
Reaction score
397
Location
Florida
Vehicles
Mazda Protege, Ford F-150
? Sooooo Ford does know about anti-corrosion coatings!!!!! Maybe they should think about applying this to the bottom of their trucks!!!

"Ford-approved anti-corrosion coatings include Motorcraft PM13-A, NOX-Rust 7703-W or Zinc-Rich primer."
Got em’!
 

Sponsored

Rkh51

Well-known member
First Name
Robert
Joined
Feb 21, 2021
Threads
4
Messages
66
Reaction score
9
Location
Pittston pa
Vehicles
Jeep jl Toyota rav4
Ford F-150 Lightning Aluminum body corrosion warning when installing aftermarket parts on F-150 B56638CD-6515-4A64-8701-2F19BED1A831

Atleats Ford gives you a heads up and not send Aluminum out with no primer and Barrier to protect the parts
 

spiritrider1

Active member
First Name
Juan
Joined
Jan 13, 2021
Threads
1
Messages
43
Reaction score
7
Location
Denton TX
Vehicles
2021 F-150 PowerBoost XLT Sport 4x4 Oxford White
Occupation
Aircraft mechanic & Maintenance planner
As an aircraft mechanic I've dealt with dissimilar metal corrosion for decades. It's well known to protect dissimilar metals whether with mylar film, zinc chromate paint or paste, etc. When I installed my floor boards on my 2018 I used plastic washers and loctite on the threads to help. Funny thing is the weld nuts are steel (lol) so they are tacked or glued on the aluminum body. Also, when installing Bull Ring tie downs on all 4 corners (yes, there is a hole on the front rails under the plastic cap!) I glued aluminum washers at all four corners to limit the steel contact of the Bull Ring mechanism. I also used mylar tape under the steel clamp edges of the Bull Ring to minimize chaffing on the underside of the aluminum top cap. See pics...

There is only so much you can do. The point is, do what you can to mitigate any chaffing, rubbing, etc. If the parts are pressed (torqued) together there will be little problem. If the parts tend to move around or chaffe, then you will start seeing oxidation on the aluminum parts. It starts like a light powdery white substance then grows to a flaky pastry that just disintegrates!

Now - I just got my 2021 Powerboost XLT!!! Time to start modding it and showing it off on the forum!

Ford F-150 Lightning Aluminum body corrosion warning when installing aftermarket parts on F-150 File_000


Ford F-150 Lightning Aluminum body corrosion warning when installing aftermarket parts on F-150 File_001


Ford F-150 Lightning Aluminum body corrosion warning when installing aftermarket parts on F-150 File_002


Ford F-150 Lightning Aluminum body corrosion warning when installing aftermarket parts on F-150 File_003


Ford F-150 Lightning Aluminum body corrosion warning when installing aftermarket parts on F-150 File_004
 

KGB81

Member
Joined
Mar 18, 2021
Threads
0
Messages
14
Reaction score
0
Location
Canada
Vehicles
21 F150
I put the clamps for my tonneau cover on directly to the box. Ill have to check and see if they are galvanized steel or aluminum clamps. Its a gator roll up soft tonneau. If not alum clamps ill go back and re-seat each clamp with some foam or elec tape in between
 

Sponsored

jiggadog

Member
Joined
Jan 26, 2021
Threads
1
Messages
19
Reaction score
4
Location
Ontario
Vehicles
F-Series
Screen Shot 2021-03-20 at 8.21.17 AM.png

I wonder how this applies to the Ford mudflaps that I was planning on getting from my dealer next week.
All of the hardware is compatible with aluminum body. Pretty sure it says as much in description. I have them in my alumabody. There’s no drilling and all existing mounting points are used.

Ford F-150 Lightning Aluminum body corrosion warning when installing aftermarket parts on F-150 55C4C326-0501-4E89-BAEC-6CD8CD7E7EED
 
 





Top