Notices
1999 - 2003 7.3L Power Stroke Diesel  
Sponsored by:
Sponsored by: DP Tuner

80/140 in rear diff?

Thread Tools
 
Search this Thread
 
Old Aug 22, 2012 | 05:04 PM
  #1  
timmyboy76's Avatar
timmyboy76
Thread Starter
|
Lead Driver
Joined: Sep 2010
Posts: 7,793
Likes: 50
80/140 in rear diff?

Guys, can i use this weight oil to flush the rear diff for a day, to wash out whats left of the oil/water mix, i got going on in there, then refill with synthetic?
 
Reply
Old Aug 22, 2012 | 06:19 PM
  #2  
Shake-N-Bake's Avatar
Shake-N-Bake
Post Fiend
Joined: Sep 2003
Posts: 6,096
Likes: 26
From: Mesa AZ
Club FTE Silver Member

I can't see how that will hurt anything...
 
Reply
Old Aug 22, 2012 | 06:19 PM
  #3  
DISLFVR's Avatar
DISLFVR
Locomotive breath
Joined: Jan 2006
Posts: 1,354
Likes: 1
From: Mid Oh. Ponderosa
Club FTE Silver Member

Just for a day, I don't believe it would hurt.
 
Reply
Old Aug 22, 2012 | 06:26 PM
  #4  
timmyboy76's Avatar
timmyboy76
Thread Starter
|
Lead Driver
Joined: Sep 2010
Posts: 7,793
Likes: 50
good enough for me, thanks guys. Just found as well, wiping the diff cover off, that theres metal shavings/ferrous in there too...not good. SO, gonna fill ur up ALOT, jack rear-end up, turn tires to slosh crap around, then pull cover again. Wipe out the best i can, and fill up with synthetic. Besides this finding, replacing the axle wasnt bad, except for, got in a hurry and installed new seal on hub WITHOUT installing the inner bearing first
 
Reply
Old Aug 22, 2012 | 06:46 PM
  #5  
DISLFVR's Avatar
DISLFVR
Locomotive breath
Joined: Jan 2006
Posts: 1,354
Likes: 1
From: Mid Oh. Ponderosa
Club FTE Silver Member

Just an FYI, I did mine the other day, ordered Royal Purple from Advance auto pts and got 15% off. Every little bit helps especially when it's over 20 bucks a quart and it has the friction modifier already in it.
 
Reply
Old Aug 23, 2012 | 07:04 PM
  #6  
truckeemtnfords's Avatar
truckeemtnfords
Logistics Pro
Veteran: Marine Corps
15 Year Member
Liked
Loved
Joined: Nov 2006
Posts: 3,671
Likes: 367
From: Fallon,NV & Bainbridge OH
Club FTE Gold Member
Put a magnet in there while you are running your "flush" oil, it will catch and keep the metal in one place rather than letting it float around in the oil destroying things. Clean it and put it back with the good oil to hang on to any pieces that might be hanging out in there.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
tonefordays
1999 - 2016 Super Duty
14
Jan 3, 2012 01:00 PM
Boatbum01
1999 - 2016 Super Duty
4
Dec 11, 2010 09:49 AM
Ford79
1999 - 2016 Super Duty
2
Mar 17, 2009 05:10 PM
Rus01
1999 - 2003 7.3L Power Stroke Diesel
9
Aug 25, 2008 08:59 PM
kellens
1994.5 - 1997 7.3L Power Stroke Diesel
14
Mar 21, 2008 07:43 AM




All times are GMT -5. The time now is 02:00 AM.

story-0
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-1
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE
story-2
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-3
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-4
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-5
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-6
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-7
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-8
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-9
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE