Differential Leak
Thread Starter
|
Freshman User
Joined: Feb 2006
Posts: 29
Likes: 0
Differential Leak
well I just changed the differential oil and I noticed a leak but it wasnt from the differential pan. It was coming from the differential and the drive shaft meet. Has anyone encountered this before? Any ideas if its a seal that broke and is it repairable? Help! Thanks. tom
Fleet Mechanic
Joined: Aug 2003
Posts: 1,771
Likes: 95
From: Phoenix, AZ
On my 2002 RWD the Ford "Seal Assy." is part #E8TZ-4676-B
I'd also pick up the flange. Possible that your flange is causing the seal to leak. When you remove the flange, inspect it for any marks, etc. If it looks good and you don't use the new one, return it for credit.
Flange # for my 2002 is 2C3Z-4851-AA
I'm on my 3 pinion seal in 5 years and 100K miles. Replaced the flange this time, hope this is the last one.
I'd also pick up the flange. Possible that your flange is causing the seal to leak. When you remove the flange, inspect it for any marks, etc. If it looks good and you don't use the new one, return it for credit.
Flange # for my 2002 is 2C3Z-4851-AA
I'm on my 3 pinion seal in 5 years and 100K miles. Replaced the flange this time, hope this is the last one.
Postmaster
Joined: Dec 2005
Posts: 3,405
Likes: 0
How are you replacing that seal without installing a new crush sleeve on the pinion. In the manuel, once that pinion flange is loosen a new crush sleeve must be installed to get correct bearing preload.
Trending Topics
Cargo Master
Joined: Jun 2003
Posts: 3,292
Likes: 6
From: Ardenvoir, Washington
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Senior User
Joined: Nov 2004
Posts: 147
Likes: 0
From: Upstate NY
I had to replace my pinion seal about 3 times with 180,000 miles. I have replaced the seal, and crush collar each time. You are supposed to change the crush collar and torque the pinion nut to get the right preload on the pinion bearing, and to make the gears mesh right.....at least that is what I was tought. I havent needed to replace the yoke yet, just clean it up good and no nicks or burs. I think the seals out today are not as good as the factory/older seals. They seem to fail alot quicker. I have had new seals out of the box leak, and thats with extreme caution with installation!
Elder User
Joined: May 2005
Posts: 582
Likes: 0
From: Refugio, Texas
I've had to change my pinion seal also. The seal can be purchased at the dealer or at an auto parts store. I changed out mine the same way Heatstroked changed his and have had no problems.....The manual says to do it in a much more different way.
