flushing out rear end - Ford Powerstroke Diesel Forum
 
LinkBack Thread Tools Display Modes
post #1 of 7 Old 08-25-2011, 08:27 AM Thread Starter
Member
 
Join Date: May 2011
Location: elmhurst
Posts: 55
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
flushing out rear end

Im replacing my pinion seal and wondering whats the best axle oil i can put in the rear.
mikeku91 is offline  
post #2 of 7 Old 08-25-2011, 08:34 AM
Compression Ignition Addict
 
Join Date: Oct 2008
Posts: 738
Thanks: 0
Thanked 13 Times in 12 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Amsoil will lower operating temp. of axle.
letitsno is offline  
post #3 of 7 Old 08-25-2011, 08:46 AM
information regurgitator

 
NYC F-350's Avatar
 
Join Date: Dec 2010
Location: Epping, NH
Posts: 6,349
Thanks: 37
Thanked 270 Times in 246 Posts
Mentioned: 14 Post(s)
Quoted: 49 Post(s)
Feedback Score: 0 reviews
75W140 synthetic diff oil. If you have a limited slip, before you purchase the "friction modifier" check the label of the oil you buy. Some of them come with the modifier as part of the formulation. If it does not state that the fricition modifier is already in it, it probably isn't.
Start with adding 4-6 ounces of modifier, drive the truck for a couple hundred miles. On a long trip where you know the rear diff oil is up to temp, find a parking lot. Come to a full stop and cut the wheels to one direction (doesn't matter which). Slowly roll into the throttle. If you feel a "chatter" add one more ounce. Drive it like this for a few hundred miles and repeat the test. Never add more than 8 ounces of the modifier. If you still get chatter, your limited slip clutch pack needs to be rebuilt.
NYC F-350 is offline  
post #4 of 7 Old 08-25-2011, 08:58 AM Thread Starter
Member
 
Join Date: May 2011
Location: elmhurst
Posts: 55
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
What brand(s) of oil comes with the "friction modifier"?
mikeku91 is offline  
post #5 of 7 Old 08-25-2011, 09:05 AM
information regurgitator

 
NYC F-350's Avatar
 
Join Date: Dec 2010
Location: Epping, NH
Posts: 6,349
Thanks: 37
Thanked 270 Times in 246 Posts
Mentioned: 14 Post(s)
Quoted: 49 Post(s)
Feedback Score: 0 reviews
Check the label to be sure, but I think Mobil1 comes with it in there.
NYC F-350 is offline  
post #6 of 7 Old 08-25-2011, 09:08 AM Thread Starter
Member
 
Join Date: May 2011
Location: elmhurst
Posts: 55
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Okay thanks a ton!
mikeku91 is offline  
post #7 of 7 Old 08-25-2011, 12:15 PM
Super Moderator


 
PGreenSVT's Avatar
 
Join Date: Mar 2008
Location: Abingdon, Md.
Posts: 11,991
Thanks: 4
Thanked 48 Times in 19 Posts
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
Feedback Score: 3 reviews
Mobil 1 does for sure but you may need more. Try first without adding and if the clutches chatter add 2 oz. If they still chatter add the other 2 oz.
PGreenSVT is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may 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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome