Rust on inside of Rear diff cover - Diesel Forum - TheDieselStop.com
Power Strokes 1994-1997 General Technical discussion of topics related to vehicles powered by the Power Stroke engine in 1994 through 1997 models.

 
LinkBack Thread Tools Display Modes
post #1 of 8 (permalink) Old 11-06-2018, 06:15 PM Thread Starter
Junior Member
 
Join Date: Sep 2018
Posts: 15
My Photos: (0)
Feedback Score: 0 reviews
Rust on inside of Rear diff cover

I just pulled the cover off of my rear differential and found that the inside had a couple rust spots (see photo). The ring gear also has a few tiny spots of rust on a couple of the teeth. Should I put it back on like that or get a new cover? Thanks.
Attached Thumbnails
Click image for larger version

Name:	20181106_171239_1541545983244.jpg
Views:	15
Size:	6.49 MB
ID:	125924  

WillyD is offline  
Sponsored Links
Advertisement
 
post #2 of 8 (permalink) Old 11-06-2018, 06:25 PM
Lifetime Supporting Member
Lifetime Supporting Member
 
bugman's Avatar
 
Join Date: May 2002
Location: Gypsum, Co
Posts: 8,111
My Photos: (12)
Feedback Score: 1 reviews
I'd just take some steel wool and clean it up and reuse the cover.

Is the vent tube still attached to the rear diff? Have you even driven through some deep water where water could of gotten into the diff?

96 F250 PS XLT 4X4 long box, 5sp,4.10, manual hubs,pyro+boost guages, Dark Toumaline, add a leaf, Dale's TYMAR, and HX hose, downpipe, coolant filter, Luk clutch
bugman is offline  
post #3 of 8 (permalink) Old 11-06-2018, 06:44 PM Thread Starter
Junior Member
 
Join Date: Sep 2018
Posts: 15
My Photos: (0)
Feedback Score: 0 reviews
Haven't driven through any standing water since I've had it, not sure about prior use though. The vent tube is still attached. I'll put some Emery cloth to it and reuse it. Thanks.
WillyD is offline  
 
post #4 of 8 (permalink) Old 11-07-2018, 11:29 AM
Senior Member
 
Steve83's Avatar
 
Join Date: Jan 2006
Location: Memphis, TN 38133, USA, Earth, Milky Way
Posts: 1,578
My Photos: (0)
Feedback Score: 0 reviews
Note that those spots are above the oil line, so they happened when the truck was parked for a long time. The oil eventually ran down, and condensation due to weather changes caused the rust. I'd degrease & wash it thoroughly a few times, and either apply primer/sealer or galvanizing compound before reinstalling it. But even with no remedial action, the cover will last decades more.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Steve83 is offline  
post #5 of 8 (permalink) Old 11-07-2018, 10:23 PM
Lifetime Supporting Member
 
ArcticDriver's Avatar
 
Join Date: Apr 2015
Location: Longmont, CO
Posts: 3,127
My Photos: (0)
Feedback Score: 0 reviews
Quote:
Originally Posted by Steve83 View Post
... and either apply primer/sealer or galvanizing compound before reinstalling it. But even with no remedial action, the cover will last decades more.
Would you have to be concerned about primer/paint or galvinizing compound deteriorating with constant gear oil exposure?


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
2002 F-250 4x4 CC SB 7.3 PSD w/4R100. 182,000 miles.
NOS Black CPS. ScanGauge-II, AIC, Bilstein 5100, Stancor GPR, Marinco Mod, B&W Turnover Ball, Michelin Defender LTX


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
2002 F-250 4x4 SC LB 7.3 PSD w/ZF-6. 177,000 miles.
NOS Black CPS. ScanGauge-II. Bilstein 5100. Noco Mod. Michelin Defender LTX 285/75/16.

SOLD:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
2000 F-250 4x4 SC SB 7.3 PSD w/4R100. 164,000 miles.
NOS Black CPS. Rebuilt Fuel bowl w/gold spring, 6.0 Cooler, Walker BTM, Stancor GPR, Michelin LTX M&S2.
ArcticDriver is offline  
post #6 of 8 (permalink) Old 11-08-2018, 12:34 AM Thread Starter
Junior Member
 
Join Date: Sep 2018
Posts: 15
My Photos: (0)
Feedback Score: 0 reviews
I'll keep that in mind when I do the front differential. I've already reinstalled the cover on the rear, but I did degrease it and clean it up with some emery cloth. Thanks.
WillyD is offline  
post #7 of 8 (permalink) Old 11-08-2018, 10:28 AM
Senior Member
 
Steve83's Avatar
 
Join Date: Jan 2006
Location: Memphis, TN 38133, USA, Earth, Milky Way
Posts: 1,578
My Photos: (0)
Feedback Score: 0 reviews
Quote:
Originally Posted by ArcticDriver View Post
Would you have to be concerned about primer/paint or galvinizing compound deteriorating with constant gear oil exposure?
Not if it's allowed to dry thoroughly before installation. But if there's gear oil on those spots, they won't continue to rust.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Steve83 is offline  
post #8 of 8 (permalink) Old 11-08-2018, 11:07 AM
Lifetime Supporting Member
Lifetime Supporting Member
 
bugman's Avatar
 
Join Date: May 2002
Location: Gypsum, Co
Posts: 8,111
My Photos: (12)
Feedback Score: 1 reviews
I figured that since the truck is 21-24 years old and the possibility of it seeing another 21-24 years that why worry when the factory didn't do anything to protect it. Odds are that rear end cover will out live the truck with nothing being done.

96 F250 PS XLT 4X4 long box, 5sp,4.10, manual hubs,pyro+boost guages, Dark Toumaline, add a leaf, Dale's TYMAR, and HX hose, downpipe, coolant filter, Luk clutch
bugman is offline  
Sponsored Links
Advertisement
 
Reply

  Diesel Forum - TheDieselStop.com > Ford Diesels > Power Strokes 1994-1997 General

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Diesel Forum - TheDieselStop.com 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











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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