Rear Diff Fluid? Vibration? - Ford Powerstroke Diesel Forum
User Tag List

LinkBack Thread Tools Display Modes
post #1 of 3 Old 04-03-2012, 12:27 PM Thread Starter
Compression Ignition Addict
ryan.sampson's Avatar
Join Date: Sep 2011
Location: York, ME
Posts: 438
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Rear Diff Fluid? Vibration?

So this is actually about my father's 05 dodge 1500 hemi 4wd:

he's at around 75k so he decided to have the tranny and rear diff flushed and new oil at the stealership... since he got it back a month or two ago its progressively developing a vibrations, it seems way worse under load or under hard braking, seems more like a driveline problem, not so much a tire misbalance. anyways i got under it to check the ujoints and check for anything else obvious, and found that the pinion seal was leaking pretty good. i've never changed the diff fluid but can you put too much in and blow the seal? or is this some kind of coincidence? i know the super duty's have the breather but i didnt see one on his axle... any thoughts??

2002 F150 4.6L AUTO RCSB

EGR Delete Kit / Livewire and EGT
Hercules FICM / ID Extreme / Vivian's Looney / Spartan Hybrid Race
A-Pillar 3 Gauge Pod w/ Fuel Pressure, Boost, Trans Temp
4" Turbo Back Straight Pipe / Blue Spring / 6.4 Banjos
7" Pro Comp Lift and Leveling / Zone Adj. Track Bar
36/15.50 Baja Claws on 20" Rockstars
13.882 @ 95.25 mph running 285 AT's
**Friends Don't Let Friends Drive Stock**
ryan.sampson is offline  
Sponsored Links
post #2 of 3 Old 04-03-2012, 02:30 PM

Evil Eye's Avatar
Join Date: Dec 2006
Location: Surprise, Arizona
Posts: 17,931
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Thanks: 16
Thanked 146 Times in 123 Posts
Feedback Score: 4 reviews
Kiss that rear end good bye especially if it starts making noises. 4 of my buddies have had their rear ends go out on their Dodge 1/2 ton pickups. Thankfully, my wife's has held up, but I am concerned it's on borrowed time.

The other thing to consider is that when I had her truck regeared (she has an 02), the shop wanted to put in a synthetic fluid, but I read the warnings on Dodge's site and had them put in the stuff that was specified. I'm not sure if it matters, but just something that came to me as I was writing my reply.

Shawn Carlson

Proud Navy Vet
2005 F250, CCSB, 6.0 PSD, FX4 (The Sweet Unit is white)
2008 F350, CCLB, 6.4 PSD (Brad-the wife's truck is black)

Engine Mods:
CCV Reroute (Reinstated)
4" MBRP Exhaust
MTW Stage 1 Turbo
Bulletproof 53V FICM
BulletProof EGR Cooler
BulletProof Water Pump
Riff Raff Intercooler Boots
Gogo Diesel Direct Drive Solenoid
BulletProof All-Aluminum Radiator
BulletProof All-Aluminum Intercooler
BulletProof Oil Cooler System w/ Bypass Filter
SCT w/ Custom Tunes (TSD, DJ's, Innovative, Gearhead, QuickTricks)

Exterior Mods:
Bilstein 5100 Shocks
Icon Adjustable Trac Bar
Firestone RideRite Air Bags
BDS Dual Steering Stabilizer
Aluminum Finned Differential Cover
Reese 16k Manual Slider 5th Wheel Hitch
Icon 2.5" Leveling Kit w/ F-350 rear blocks
20" BMF Novakanes wrapped in 33" Nitto Terra Grapplers
Evil Eye is offline  
post #3 of 3 Old 04-03-2012, 05:36 PM
Powerstroke Techie

Join Date: Nov 2010
Location: South Fayette/Pittsburgh PA
Posts: 5,785
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Thanks: 33
Thanked 139 Times in 126 Posts
Feedback Score: 4 reviews
grab your pinion flange and see if it moves around at all. a loose pinion flange nut will cause this and the fluid loss, same if the pinion bearings are starting to go.
sinner6.0L is offline  
Sponsored Links

Quick Reply

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


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

Email Address:


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