Notices
1999 - 2016 Super Duty 1999 to 2016 Ford F250, F350, F450 and F550 Super Duty with diesel V8 and gas V8 and V10 engines
Sponsored by:
Sponsored by: Real Truck

Need help with the Knuckle

Thread Tools
 
Search this Thread
 
Old Apr 24, 2021 | 12:30 AM
  #1  
PJWhelan's Avatar
PJWhelan
Thread Starter
|
Laughing Gas
5 Year Member
Liked
Loved
Community Favorite
Joined: Jan 2019
Posts: 868
Likes: 84
From: Florida
Need help with the Knuckle


This is a pix of the drivers side knuckle on my 2002 F 250 4WD XLT. There is a seal that has come undone and the passenger side is still intact. The question is should I worry about it? It's a rubberized seal (ring) that seals the knuckle from debris. So, should I worry??
PJ
 
Reply
Old Apr 24, 2021 | 07:57 AM
  #2  
Dweber85rc's Avatar
Dweber85rc
Fleet Mechanic
5 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Mar 2019
Posts: 1,294
Likes: 164
It depends. You still have the inner axle seal that does the actual sealing of the differential. That is just a dust seal. To replace it you have to take the entire knuckle apart.
 
Reply
Old Apr 24, 2021 | 08:16 AM
  #3  
PJWhelan's Avatar
PJWhelan
Thread Starter
|
Laughing Gas
5 Year Member
Liked
Loved
Community Favorite
Joined: Jan 2019
Posts: 868
Likes: 84
From: Florida
Yeah, I was just doing the research of an axle tear down and realized that very same thing. Perhaps one day.....
 
Reply
Old Apr 24, 2021 | 08:34 AM
  #4  
WWR's Avatar
WWR
Cargo Master
10 Year Member
Liked
Loved
Community Favorite
Joined: Dec 2015
Posts: 2,921
Likes: 515
Uhhhhhh.......... NO.

I deleted them from my '11. Dumbest idea ever. It just acts as a dam: water can spill over it but can't run back out. I found a solid wall of silt behind mine as tall as the bottom half of the seal.

Also if you describe it as an axle tube seal or seal at the "inner C" you'll get more recognition than saying "knuckle"
 
Reply
Old Apr 24, 2021 | 12:26 PM
  #5  
PJWhelan's Avatar
PJWhelan
Thread Starter
|
Laughing Gas
5 Year Member
Liked
Loved
Community Favorite
Joined: Jan 2019
Posts: 868
Likes: 84
From: Florida
WWR, and so noted!) Thanks for the clarification.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
LitTheButtEnd
1999 - 2016 Super Duty
9
May 6, 2018 04:17 PM
df85732
1948 - 1956 F1, F100 & Larger F-Series Trucks
11
Jul 1, 2016 12:17 PM
truckmen
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
16
Aug 5, 2015 06:44 AM
fdude64
1987 - 1996 F150 & Larger F-Series Trucks
2
Aug 5, 2012 11:36 AM




All times are GMT -5. The time now is 07:47 PM.

story-0
5 BEST / 5 WORST Ford Daily Drivers of the 21st Century

Slideshow: The 5 best and 5 worst Ford daily drivers of the 21st century.

By Joe Kucinski | 2026-06-23 08:55:01


VIEW MORE
story-1
10 Fords to Drive Before You Die

Slideshow: 10 Fords to drive before you die.

By Joe Kucinski | 2026-06-22 14:29:44


VIEW MORE
story-2
3 Best / Worst Features Of The 2025+ Ford Expedition

The latest Expedition is quite popular, but it certainly isn't perfect.

By Brett Foote | 2026-06-22 14:23:19


VIEW MORE
story-3
10 Ways Ford is LOSING to the Competition

Slideshow: 10 ways Ford is losing to the competition

By Joe Kucinski | 2026-06-15 09:52:01


VIEW MORE
story-4
Top 6 Best Deals Available on New Fords & Lincolns Right Now

Some great targets in today's expensive world.

By Brett Foote | 2026-06-15 09:35:19


VIEW MORE
story-5
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.

By Verdad Gallardo | 2026-06-12 11:01:55


VIEW MORE
story-6
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-7
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-8
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-9
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE