Differential Fluid Change
Thread Starter
|
Posting Guru
Joined: Aug 2006
Posts: 1,199
Likes: 0
From: High Point, NC
Differential Fluid Change
I did it on my 01 X and now I did it on my 06 F250...
The diff cover was looking pretty rough, so I knew it was time to change the fluid and give a fresh coat of paint.
Notice how 'frothy' the old fluid looked... not to pretty IMHO. But the gears looked good...
Got the cover sanded as best I could - I wish I had access to a sand blaster. If it survives another 100K, I'll just replace it next time.
The plug looked good - not too much magnetized to it.
I got all cleaned up, applied 2 coats of Hi Temp Paint and laid a bead of red RVT around it then replaced the cover. After letting it sit over night I refilled with Royal Purple 75w/140 the next morning.
I got a little messy with the Red RVT and will clean it up better later on...
So far, so good - no indication of any leaks.
BTW, both times I did this I followed Guzzle's instructions without any problems - but mine never turns out looking as good as his does. Welcome to guzzle's Rear Differential Maintenance Web Page
The diff cover was looking pretty rough, so I knew it was time to change the fluid and give a fresh coat of paint.
I got all cleaned up, applied 2 coats of Hi Temp Paint and laid a bead of red RVT around it then replaced the cover. After letting it sit over night I refilled with Royal Purple 75w/140 the next morning.
I got a little messy with the Red RVT and will clean it up better later on...
BTW, both times I did this I followed Guzzle's instructions without any problems - but mine never turns out looking as good as his does. Welcome to guzzle's Rear Differential Maintenance Web Page
Hotshot
Joined: Dec 2003
Posts: 15,369
Likes: 121
From: Stuttgart, Ar
To the OP. Check out the cast aluminum cover on the 08 'Duty and use that the next diff. oil change. No more sanding painting rusting, and it's cheap.
Hotshot
Joined: Dec 2003
Posts: 15,369
Likes: 121
From: Stuttgart, Ar
The cast aluminum rear diff. cover from an 08 is really a great addition to do when you change the fluid. It's fairly cheap but does require a little longer bolt.
Thread Starter
|
Posting Guru
Joined: Aug 2006
Posts: 1,199
Likes: 0
From: High Point, NC
3.5 quarts to fill it.
As said, use RVT silicone. I chose the RED because it has a higher temp tolerance and I tow a 10k# TT.
As said, use RVT silicone. I chose the RED because it has a higher temp tolerance and I tow a 10k# TT.
Trending Topics
Posting Guru
Joined: Nov 2008
Posts: 1,458
Likes: 2
From: CA Sacramento
I like that cover but I am hesitant about getting it because it holds less fluid.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Thread
Thread Starter
Forum
Replies
Last Post
Gary Lewis
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
204
Jul 27, 2016 11:11 AM
ReBilld
1994.5 - 1997 7.3L Power Stroke Diesel
51
Jul 14, 2012 06:39 PM
