Go Back   Ford Truck Enthusiasts Forums > Super Duty/Heavy Duty > Super Duty & Heavy Duty
Sign in using an external account
Register Forgot Password?


Super Duty & Heavy Duty 1999 to current Ford F250, F350, F450 and F550 Super Duty with diesel V8 and gas V8 and V10 engines SPONSORED BY:

Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
Reply
 
LinkBack Thread Tools Search this Thread
  #1 (permalink)  
Old 06-18-2011, 02:12 PM
jc8825's Avatar
jc8825 jc8825 is offline
Posting Guru
 
Join Date: Jul 2010
Location: Fort Worth
Posts: 1,711
jc8825 is gaining momentum as a positive member of FTE.jc8825 is gaining momentum as a positive member of FTE.
Differential fluid

Anyone here follow the recommended service and never change the rear differential fluid? The front calls for service every 150K, but the rear is "lubricated for life". I have done the front, but I didn't know if I should do the rear. I had it checked a while back and was told the fluid looked good.
__________________
2002 F-250 XLT SC LB 4x4 7.3L PSD - SOLD
2004 F-250 XLT SC LB 4x4 5.4L ZF6 - SOLD
"Our foreign policy WILL change eventually, as Rome's did, when all budgetary and monetary tricks to fund it are exhausted."
- Ron Paul
Reply With Quote
  #2 (permalink)  
Old 06-18-2011, 04:08 PM
Kajtek1's Avatar
Kajtek1 Kajtek1 is offline
Postmaster
 
Join Date: Apr 2006
Location: CA Bay Area
Posts: 3,524
Kajtek1 has a very good reputation on FTE.Kajtek1 has a very good reputation on FTE.Kajtek1 has a very good reputation on FTE.
Where did you find those recommendations? I found info about my Dana 80 to have the oil changed every 30k.
I rebuild my differential a year ago and changed the oil after 10k as the plug magnet had lot of steel "dust" on it.
That said my Mercedes has 220,000 miles on it and I have no records the differential was ever serviced. I am not planning to do so for the next 300,000. Only checked the oil level some time ago as it shows some oil sweating.
Reply With Quote
  #3 (permalink)  
Old 06-18-2011, 04:43 PM
jc8825's Avatar
jc8825 jc8825 is offline
Posting Guru
 
Join Date: Jul 2010
Location: Fort Worth
Posts: 1,711
jc8825 is gaining momentum as a positive member of FTE.jc8825 is gaining momentum as a positive member of FTE.
Quote:
Originally Posted by Kajtek1 View Post
Where did you find those recommendations? I found info about my Dana 80 to have the oil changed every 30k.
Ford Scheduled Maintenance Guide. The F-450 (Dana 80) and F-550 (Dana 135) are excluded from this and are recommended to change rear axle lubricant between 50K-100K miles.

Click the image to open in full size.
__________________
2002 F-250 XLT SC LB 4x4 7.3L PSD - SOLD
2004 F-250 XLT SC LB 4x4 5.4L ZF6 - SOLD
"Our foreign policy WILL change eventually, as Rome's did, when all budgetary and monetary tricks to fund it are exhausted."
- Ron Paul
Reply With Quote
  #4 (permalink)  
Old 06-18-2011, 05:23 PM
Kajtek1's Avatar
Kajtek1 Kajtek1 is offline
Postmaster
 
Join Date: Apr 2006
Location: CA Bay Area
Posts: 3,524
Kajtek1 has a very good reputation on FTE.Kajtek1 has a very good reputation on FTE.Kajtek1 has a very good reputation on FTE.
Well... we had endless discussion on "lifetime transmission fluid" on Mercedes forum in section with cars made in 1995-2003. In that era average car life was less than 10 years. Now, while driving 15 years old cars the owners keep on asking "who's life we are talking about here?"
Mercedes on newer models changed the policy and advise fluid replacements.
Sure sounds like you opened another can of worms.
Good luck whenever it goes.
Oh, BTW years ago I took educational courses about oils. The main rule about oils always was "don't judge oils by their looks"
Reply With Quote
  #5 (permalink)  
Old 06-18-2011, 05:48 PM
F350-6's Avatar
F350-6 F350-6 is offline
Post Fiend
 
Join Date: Mar 2007
Location: Texas
Posts: 23,654
F350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputation
Change the fluid. Lifetime means until it needs a rebuild. It won't need a rebuild as soon if you change the fluid. Besides, if you've got a limited slip rear end you'll be amazed how much better the rear grabs when you put the proper amount of friction modifier in there instead of dumping in way too much like they do at the factory.
__________________
Chris
2002 F350 6-speed 444 CID. XLT, Heated Seat, 480,000 & counting.
RHN Mods & Maintenance

“Good judgment comes from experience, and a lot of that comes from bad judgment.” Will Rogers
Reply With Quote
  #6 (permalink)  
Old 06-18-2011, 05:56 PM
bpounds's Avatar
bpounds bpounds is online now
2 bit Californian
 
Join Date: Aug 2006
Location: Whittier, CA
Posts: 15,850
bpounds has a superb reputationbpounds has a superb reputationbpounds has a superb reputationbpounds has a superb reputationbpounds has a superb reputationbpounds has a superb reputationbpounds has a superb reputationbpounds has a superb reputationbpounds has a superb reputationbpounds has a superb reputationbpounds has a superb reputation
bill.pounds.1
I change every 50-60k on a truck. Cars don't matter so much.

As far as the schedule, I don't think anyone here should be looking at the Normal Service. Severe Service applies to almost everyone. If it doesn't, you probably shouldn't be driving a truck.

Here's what I did on my Superduty.
http://www.ford-trucks.com/forums/89...with-pics.html
__________________
Folks call me Bill. Why, yes, it is a 6 liter. Your jealousy is showing.

2006 F250 XLT SCLB FX4 4x4 6.0L Auto,Magnaflow Turbo Back (w/CAT),Edge Insight CS,Blue Spring,RhinoLiner,Retrax Cover,Cab Lights Retro-fit,Overhead Console Retro-fit,Bilsteins,Harpooned,C-Betrs,Fumoto,'08 Diff Cover,Upfitters Retro-fit,Coolant Filter,Custom Man Steps,Keystone 2011 Cougar 278RKSWE,2012 Fusion SE
Reply With Quote
  #7 (permalink)  
Old 06-19-2011, 03:41 PM
jc8825's Avatar
jc8825 jc8825 is offline
Posting Guru
 
Join Date: Jul 2010
Location: Fort Worth
Posts: 1,711
jc8825 is gaining momentum as a positive member of FTE.jc8825 is gaining momentum as a positive member of FTE.
Quote:
Originally Posted by F350-6 View Post
Change the fluid. Lifetime means until it needs a rebuild. It won't need a rebuild as soon if you change the fluid. Besides, if you've got a limited slip rear end you'll be amazed how much better the rear grabs when you put the proper amount of friction modifier in there instead of dumping in way too much like they do at the factory.
Okay, now for the friction modifier. I plan to use Valvoline Synthetic 75-140 gear oil as per the manual, do I need to use Motorcraft friction modifier? How much? I have read in two different Ford publications, one said 4oz, the other said 8oz. Which is it?
__________________
2002 F-250 XLT SC LB 4x4 7.3L PSD - SOLD
2004 F-250 XLT SC LB 4x4 5.4L ZF6 - SOLD
"Our foreign policy WILL change eventually, as Rome's did, when all budgetary and monetary tricks to fund it are exhausted."
- Ron Paul
Reply With Quote
  #8 (permalink)  
Old 06-19-2011, 03:54 PM
bpounds's Avatar
bpounds bpounds is online now
2 bit Californian
 
Join Date: Aug 2006
Location: Whittier, CA
Posts: 15,850
bpounds has a superb reputationbpounds has a superb reputationbpounds has a superb reputationbpounds has a superb reputationbpounds has a superb reputationbpounds has a superb reputationbpounds has a superb reputationbpounds has a superb reputationbpounds has a superb reputationbpounds has a superb reputationbpounds has a superb reputation
bill.pounds.1
I suggest you choose a synthetic that has the modifier already in it. The Valvoline may, not sure. Mobil 1 and Royal Purple have it.
__________________
Folks call me Bill. Why, yes, it is a 6 liter. Your jealousy is showing.

2006 F250 XLT SCLB FX4 4x4 6.0L Auto,Magnaflow Turbo Back (w/CAT),Edge Insight CS,Blue Spring,RhinoLiner,Retrax Cover,Cab Lights Retro-fit,Overhead Console Retro-fit,Bilsteins,Harpooned,C-Betrs,Fumoto,'08 Diff Cover,Upfitters Retro-fit,Coolant Filter,Custom Man Steps,Keystone 2011 Cougar 278RKSWE,2012 Fusion SE
Reply With Quote
  #9 (permalink)  
Old 06-19-2011, 04:38 PM
F350-6's Avatar
F350-6 F350-6 is offline
Post Fiend
 
Join Date: Mar 2007
Location: Texas
Posts: 23,654
F350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputation
You can get the friction modifier from places like NAPA or Carquest too. Start out with 4 oz and take it for a test drive around a bunch of corners. If you're getting any chattering, add another ounce and test again until the chattering is gone. If you dump too much in there you don't have to worry about the chatter, but it also makes the LS about useless.
__________________
Chris
2002 F350 6-speed 444 CID. XLT, Heated Seat, 480,000 & counting.
RHN Mods & Maintenance

“Good judgment comes from experience, and a lot of that comes from bad judgment.” Will Rogers
Reply With Quote
  #10 (permalink)  
Old 06-19-2011, 05:07 PM
A/Ox4's Avatar
A/Ox4 A/Ox4 is offline
9 ECHO 1
 
Join Date: Aug 2009
Location: Ventura, CA
Posts: 11,342
A/Ox4 has a superb reputationA/Ox4 has a superb reputationA/Ox4 has a superb reputationA/Ox4 has a superb reputationA/Ox4 has a superb reputationA/Ox4 has a superb reputationA/Ox4 has a superb reputationA/Ox4 has a superb reputationA/Ox4 has a superb reputationA/Ox4 has a superb reputationA/Ox4 has a superb reputation
I just did mine yesterday. It also gave me a change to clean out the inside of the cover and I took them down and repainted them.
__________________
- Trey PAA Member #110
"Jaws"- 2002 F250 XLT CrewCab Short Bed 4x4 7.3L
My How-To Video Library
SoCal Chapter Member (Join us HERE)
Reply With Quote
  #11 (permalink)  
Old 06-19-2011, 05:49 PM
jc8825's Avatar
jc8825 jc8825 is offline
Posting Guru
 
Join Date: Jul 2010
Location: Fort Worth
Posts: 1,711
jc8825 is gaining momentum as a positive member of FTE.jc8825 is gaining momentum as a positive member of FTE.
Quote:
Originally Posted by TreySpooner65 View Post
I just did mine yesterday. It also gave me a change to clean out the inside of the cover and I took them down and repainted them.
I'm just going to empty and fill. I'm not going to be taking it apart.
__________________
2002 F-250 XLT SC LB 4x4 7.3L PSD - SOLD
2004 F-250 XLT SC LB 4x4 5.4L ZF6 - SOLD
"Our foreign policy WILL change eventually, as Rome's did, when all budgetary and monetary tricks to fund it are exhausted."
- Ron Paul
Reply With Quote
  #12 (permalink)  
Old 06-19-2011, 05:52 PM
jc8825's Avatar
jc8825 jc8825 is offline
Posting Guru
 
Join Date: Jul 2010
Location: Fort Worth
Posts: 1,711
jc8825 is gaining momentum as a positive member of FTE.jc8825 is gaining momentum as a positive member of FTE.
Quote:
Originally Posted by bpounds View Post
I suggest you choose a synthetic that has the modifier already in it. The Valvoline may, not sure. Mobil 1 and Royal Purple have it.
I can get the Valvoline for 11.99/qt and add the 4oz bottle of Motorcraft friction modifier for 6.99. The Mobil 1 and RP are both over $19/qt. No, thank you. I have NEVER used a Mobil 1 or RP product for that reason. If I am going to get into spending big bucks for fluid, I'll buy Amsoil, which I won't, I'm just sayin'...
__________________
2002 F-250 XLT SC LB 4x4 7.3L PSD - SOLD
2004 F-250 XLT SC LB 4x4 5.4L ZF6 - SOLD
"Our foreign policy WILL change eventually, as Rome's did, when all budgetary and monetary tricks to fund it are exhausted."
- Ron Paul
Reply With Quote
  #13 (permalink)  
Old 06-19-2011, 05:57 PM
bpounds's Avatar
bpounds bpounds is online now
2 bit Californian
 
Join Date: Aug 2006
Location: Whittier, CA
Posts: 15,850
bpounds has a superb reputationbpounds has a superb reputationbpounds has a superb reputationbpounds has a superb reputationbpounds has a superb reputationbpounds has a superb reputationbpounds has a superb reputationbpounds has a superb reputationbpounds has a superb reputationbpounds has a superb reputationbpounds has a superb reputation
bill.pounds.1
Quote:
Originally Posted by jc8825 View Post
I can get the Valvoline for 11.99/qt and add the 4oz bottle of Motorcraft friction modifier for 6.99. The Mobil 1 and RP are both over $19/qt. No, thank you. I have NEVER used a Mobil 1 or RP product for that reason. If I am going to get into spending big bucks for fluid, I'll buy Amsoil, which I won't, I'm just sayin'...
Fine. Spent 20 seconds in Google to find that the Valvoline has the additive already, as I suggested that it might.
Valvoline.com > Products > Grease Gear Oil > Gear Oil > SynPower® Full Synthetic Gear Oil

Really wasn't hard to find.
__________________
Folks call me Bill. Why, yes, it is a 6 liter. Your jealousy is showing.

2006 F250 XLT SCLB FX4 4x4 6.0L Auto,Magnaflow Turbo Back (w/CAT),Edge Insight CS,Blue Spring,RhinoLiner,Retrax Cover,Cab Lights Retro-fit,Overhead Console Retro-fit,Bilsteins,Harpooned,C-Betrs,Fumoto,'08 Diff Cover,Upfitters Retro-fit,Coolant Filter,Custom Man Steps,Keystone 2011 Cougar 278RKSWE,2012 Fusion SE
Reply With Quote
  #14 (permalink)  
Old 06-19-2011, 05:59 PM
F350-6's Avatar
F350-6 F350-6 is offline
Post Fiend
 
Join Date: Mar 2007
Location: Texas
Posts: 23,654
F350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputationF350-6 has a superb reputation
How are you going to drain? Got a vacuum pump? Standard procedure is usually pull the cover, drain fluid, wipe things down a bit, new permatex, stick the cover back on and fill.
__________________
Chris
2002 F350 6-speed 444 CID. XLT, Heated Seat, 480,000 & counting.
RHN Mods & Maintenance

“Good judgment comes from experience, and a lot of that comes from bad judgment.” Will Rogers
Reply With Quote
  #15 (permalink)  
Old 06-19-2011, 07:11 PM
SpringerPop's Avatar
SpringerPop SpringerPop is online now
Too old to be too smart
 
Join Date: Jan 2002
Location: LA LA Land
Posts: 15,204
SpringerPop has a superb reputationSpringerPop has a superb reputationSpringerPop has a superb reputationSpringerPop has a superb reputationSpringerPop has a superb reputationSpringerPop has a superb reputationSpringerPop has a superb reputationSpringerPop has a superb reputationSpringerPop has a superb reputationSpringerPop has a superb reputationSpringerPop has a superb reputation
Quote:
Originally Posted by jc8825 View Post
I'm just going to empty and fill. I'm not going to be taking it apart.
OK, but that's going to make things a bit more difficult, as there's no drain plug on these.

Pop
__________________
-Marv- a member of The Brotherhood
"Some of us pride ourselves on the money we've spent on our trucks, and some of us on what we have NOT"
2000 F350 Lariat 7.3,A/T,CC,LB,4X4,SRW, CCV, Sonnax/springs, Dahl, spin-on trans filter, spin-on hydraulic filter, coolant filter, 6637 & cover, bypass lube oil filter, HPX, Hutch n' harpoon.
Email SpringerPop SpringerPop's F-350
Reply With Quote
Old 06-19-2011, 07:11 PM
Reply

Go Back   Ford Truck Enthusiasts Forums > Super Duty/Heavy Duty > Super Duty & Heavy Duty

Tags
2002, 2011, 250, bad, changed, diff, differential, duty, f250, f350, fluid, front, gear, oil, super

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On
Forum Jump



All times are GMT -5. The time now is 10:19 PM.


Powered by vBulletin® Version 3.7.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.5.2 ©2010, Crawlability, Inc.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup