MVI's F350 Build

[Blade420Play🔪🏆]

27 October 2025
16064 miles

I hate the fact FORD did not put a drain plug on the Rear Axle, and I'd Rather buy Dove and Duck hunting ammo than to purchase an ALUM DIFF COVER

So here goes... Pulled the DIFF COVER, Oil was black, it was topped off to the fill hole, and had minimal sparkles in it from the break in and several trips to CO, AR, OK with a trailer.

Then the fun started and I Drilled three holes with a Rotabroach cutter to prep the DIFF cover for Steel BUNGS

View attachment 231895


Welded in some bungs, and had to load in a new Spool of 0.030 INE wire into the Miller 210 (10# spool).

Then cleaned it all up and washed with brake cleaner
View attachment 231896 View attachment 231897



Super simple Job, all you need is a 3/8" ratchet and various 13mm wrenches, 13mm sockets and a torque meter to 22FT-LBF
The 36" 1/2 drive to 3/8" drive is a specialty tool for transmission work, but I carry it in the F350 to lower and raise the spare
View attachment 231898


I ended up not using the RTV, as the OEM FORD gasket has a seal on it.

2024 F350 7.3 Godzilla has a 11.6 Sterling Axle and it requires a PN # PC3Z-4036-A gasket

View attachment 231899

In Summation, I added three bungs.

1. Bottom Bung is for for a GOLD PLUG Drain plug, I Chose a M18x1.5 because if had to fit under the Ring and Pinion
2. Middle Bung a large Stainless Sight Glass rated to 300 psi , when All the way full to the top, that is 4 qts exactly.
3. Top Bung is the Fill Plug, because Ford and Dana were incapable to put the Fill Plug in the Correct Position and I ain't messing with my ELD port to add oil

View attachment 231902

Look how clean that oil is !!

Sight glass does double Duty, Fill level indicator to 4 qts , and lets you know when Black and needs a change.

OIL CAPACITY



Please Follow MVI's F350 Build for more useless information..

When are these going up for sale?

 

[OmahaBravo]

27 October 2025
16064 miles

I hate the fact FORD did not put a drain plug on the Rear Axle, and I'd Rather buy Dove and Duck hunting ammo than to purchase an ALUM DIFF COVER

So here goes... Pulled the DIFF COVER, Oil was black, it was topped off to the fill hole, and had minimal sparkles in it from the break in and several trips to CO, AR, OK with a trailer.

Then the fun started and I Drilled three holes with a Rotabroach cutter to prep the DIFF cover for Steel BUNGS

View attachment 231895


Welded in some bungs, and had to load in a new Spool of 0.030 INE wire into the Miller 210, seems to run out at the worst time...

Then ground and cleaned it all up and washed with brake cleaner
View attachment 231896 View attachment 231897



Super simple Job, all you need is a 3/8" ratchet and various 13mm wrenches, 13mm sockets and a torque meter to 22FT-LBF
The 36" 1/2 drive to 3/8" drive is a specialty tool for transmission work, but I carry it in the F350 to lower and raise the spare
View attachment 231898


I ended up not using the RTV, as the OEM FORD gasket has a seal on it.

2024 F350 7.3 Godzilla has a 11.6 Sterling Axle and it requires a PN # PC3Z-4036-A gasket

View attachment 231899

In Summation, I added three bungs.

1. Bottom Bung is for for a GOLD PLUG Drain plug, I Chose a M18x1.5 because if had to fit under the Ring and Pinion
2. Middle Bung a large Stainless Sight Glass rated to 300 psi , when All the way full to the top, that is 4 qts exactly.
3. Top Bung is the Fill Plug, because Ford and Dana were incapable to put the Fill Plug in the Correct Position and I ain't messing with my ELD port to add oil

View attachment 231902

Look how clean that oil is !!

Sight glass does double Duty, Fill level indicator to 4 qts , and lets you know when Black and needs a change.

OIL CAPACITY



Please Follow MVI's F350 Build for more useless information..

Nicely executed.
The sight glass is a neat idea.

 

[Optimus🤖]

27 October 2025
16064 miles

I hate the fact FORD did not put a drain plug on the Rear Axle, and I'd Rather buy Dove and Duck hunting ammo than to purchase an ALUM DIFF COVER

So here goes... Pulled the DIFF COVER, Oil was black, it was topped off to the fill hole, and had minimal sparkles in it from the break in and several trips to CO, AR, OK with a trailer.

Then the fun started and I Drilled three holes with a Rotabroach cutter to prep the DIFF cover for Steel BUNGS

View attachment 231895


Welded in some bungs, and had to load in a new Spool of 0.030 INE wire into the Miller 210, seems to run out at the worst time...

Then ground and cleaned it all up and washed with brake cleaner
View attachment 231896 View attachment 231897



Super simple Job, all you need is a 3/8" ratchet and various 13mm wrenches, 13mm sockets and a torque meter to 22FT-LBF
The 36" 1/2 drive to 3/8" drive is a specialty tool for transmission work, but I carry it in the F350 to lower and raise the spare
View attachment 231898


I ended up not using the RTV, as the OEM FORD gasket has a seal on it.

2024 F350 7.3 Godzilla has a 11.6 Sterling Axle and it requires a PN # PC3Z-4036-A gasket

View attachment 231899

In Summation, I added three bungs.

1. Bottom Bung is for for a GOLD PLUG Drain plug, I Chose a M18x1.5 because if had to fit under the Ring and Pinion
2. Middle Bung a large Stainless Sight Glass rated to 300 psi , when All the way full to the top, that is 4 qts exactly.
3. Top Bung is the Fill Plug, because Ford and Dana were incapable to put the Fill Plug in the Correct Position and I ain't messing with my ELD port to add oil

View attachment 231902

Look how clean that oil is !!

Sight glass does double Duty, Fill level indicator to 4 qts , and lets you know when Black and needs a change.

OIL CAPACITY



Please Follow MVI's F350 Build for more useless information..

I like drillin' and fillin' holes but this is next level! Great job!

 

[Rodd187]

27 October 2025
16064 miles

I hate the fact FORD did not put a drain plug on the Rear Axle, and I'd Rather buy Dove and Duck hunting ammo than to purchase an ALUM DIFF COVER

So here goes... Pulled the DIFF COVER, Oil was black, it was topped off to the fill hole, and had minimal sparkles in it from the break in and several trips to CO, AR, OK with a trailer.

Then the fun started and I Drilled three holes with a Rotabroach cutter to prep the DIFF cover for Steel BUNGS

View attachment 231895


Welded in some bungs, and had to load in a new Spool of 0.030 INE wire into the Miller 210, seems to run out at the worst time...

View attachment 231896 View attachment 231897
Then cleaned it up and washed with brake cleaner


Super simple Job, all you need is a 3/8" ratchet and various 13mm wrenches, 13mm sockets and a torque meter to 22FT-LBF
The 36" 1/2 drive to 3/8" drive is a specialty tool for transmission work, but I carry it in the F350 to lower and raise the spare
View attachment 231898


I ended up not using the RTV, as the OEM FORD gasket has a seal on it.

2024 F350 7.3 Godzilla has a 11.6 Sterling Axle and it requires a PN # PC3Z-4036-A gasket

View attachment 231899

In Summation, I added three bungs.

1. Bottom Bung is for for a GOLD PLUG Drain plug, I Chose a M18x1.5 because if had to fit under the Ring and Pinion. The Crush washer is Gold Plug Part # SW-05
2. Middle Bung a large Stainless Sight Glass rated to 300 psi , when All the way full to the top, that is 4 qts exactly.
3. Top Bung is the Fill Plug, because Ford and Sterling were incapable to put the Fill Plug in the Correct Position and I ain't messing with my ELD port to add oil. I used a Copper washer to seal this Plug

View attachment 231902

Look how clean that oil is !!

Sight glass does double Duty, Fill level indicator to 4 qts , and lets you know when Black and needs a change.

OIL CAPACITY



Follow MVI's F350 Build for more useless information..

Excellent work, I love following your projects

 

[AZsurveyor]

When are these going up for sale?

I second this.

Put me on the list.

 

[mrmag00]

Very cool idea. Been looking at Motobilt covers, but definitely an alternative. Looking at a stouter cover. Well are you going to do the front one as well.

 

[Avslash]

Very cool idea. Been looking at Motobilt covers, but definitely an alternative. Looking at a stouter cover. Well are you going to do the front one as well.

I will buy one if you market them

 

[OmahaBravo]

Excellent work, I love following your projects

 

[MVI]

Well are you going to do the front one as well.

Perhaps, I'm thinking of how to armor plate the lower front diff cover and front sight glass is also protected.

I'm pretty busy this time of year hunting

 

[MVI]

I've had enough interest in doing DIFF PAN mods from people, that when I am back from Mexico, I'll sort out the costs to buy new pans or make a core charge pan exchange program.

I also have plans for a front Diff Pan mod, perhaps with armor.

 

[AZsurveyor]

I've had enough interest in doing DIFF PAN mods from people, that when I am back from Mexico, I'll sort out the costs to buy new pans or make a core charge pan exchange program.

I also have plans for a front Diff Pan mod, perhaps with armor.

You took the words right out of my mouth, but I wasn’t sure if you had seriously considered marketing this, so I didn’t want to push the subject.

I’d guess the exchange program would attract a lot of interest.

Sign me up.

 

[MVI]

25 November 2025
16253 miles

LOF # 4 at the Bill Utter Ford - "the Best dealer in Denton TX"

HVAC Was serviced with a new EVAP installed. Big Job, the Parts alone cost $ 424.69, plus Labor, all covered under warranty

 

[Spitfire40]

25 November 2025
16253 miles

LOF # 4 at the Bill Utter Ford - "the Best dealer in Denton TX"

HVAC Was serviced with a new EVAP installed. Big Job, the Parts alone cost $ 424.69, plus Labor, all covered under warranty


View attachment 236523

Man. They had to take your seats and console out plus your dash! How bad was this smell?

 

[MVI]

Bad enough. There is a thread on the topic here....

Consider yourself lucky if you don't have this issue

 

[The Evil Twin]

25 November 2025
16253 miles

LOF # 4 at the Bill Utter Ford - "the Best dealer in Denton TX"

HVAC Was serviced with a new EVAP installed. Big Job, the Parts alone cost $ 424.69, plus Labor, all covered under warranty


View attachment 236523

This is why I always turn the cooling off and keep the fan on while pulling up the driveway. It helps evaporate the condensation on the coil and in the pan before shutting it down.

 

[MVI]

Too hot in the Texas Summers for that.

This is bad design or defective parts. It's that simple.

I expected better from Ford

 

[The Evil Twin]

Eh, I'll have to disagree. South Atlantic summers aren't much better. Never had an issue with any vehicle using my method. 2 minutes up the driveway without cooling is nothing.

 

[MVI]

Meh - None of my Chevy trucks for the last 30 years in Texas required shutting off the AC for 2-5 minutes.
Seems like you have a work around you like.

I tried that method , even after using the Klima Clean, and still had the Musty smell at startup.
So back to the dealer the truck went..

 

[The Evil Twin]

It works on every vehicle I've ever owned.

 

[Aaron24F350]

This was a good watch for that musty smell some trucks get. Arod gets tight and right up in there haha bit of a job but the product seems to improve things.