leaky rear end - F150online Forums

leaky rear end

Old 06-10-2018, 07:27 AM
Senior Member
Thread Starter
Join Date: Apr 2018
Location: NorCal
Posts: 202
leaky rear end

ok, get your heads out of the gutter :gap:

so, / I recently put on a spectre chrome diff cover on my 9.75"

I have found it to be leaking. I used the paper gasket that came with it, and torqued the bolts to 30 ft/lbs

Going to try and just tighten them up with a ratchet, also going to see if I have an axle breather that may be plugged?

If that doesn't work, should I just redo it with RTV? if so, what color is the best?

A friend of mine, actually said he hates those chrome covers because they warp and leak, has anyone here had that issue with them?


Last edited by jimbo74; 06-11-2018 at 09:14 AM.
Old 06-11-2018, 08:09 AM
Senior Member
Join Date: Aug 2011
Location: ky.
Posts: 723
I used the grey RTV and it worked good.
Old 06-11-2018, 09:00 AM
Technical Article Contributor
Join Date: Jan 2007
Location: Vernon, NY
Posts: 8,080
I used the grey RTV when I swapped the fluid on my '00 Dakota a couple years ago. Dry as a bone.

If you aren't sure how to make a gasket, go on YouTube and watch a couple videos from mechanics or the manufacturer.

Old 06-11-2018, 10:16 PM
Senior Member
Join Date: Mar 2001
Location: Puyallup, WA
Posts: 4,459
Yep, needed to use the RVT... They came from the factory without a gasket.. Just the RVT.

Didn't even know they made a gasket for the 9.75" ??

Chrome cover? Why?

Holds more heat, will just rust anyway...

Good luck!

Old 06-12-2018, 08:43 AM
Senior Member
Thread Starter
Join Date: Apr 2018
Location: NorCal
Posts: 202
so...... looking @ tearing this apart again.....

might as well spend the couple hundred bucks on an aluminum, higher capacity cover, with a drain plug, and a fill plug, and a sight glass. looking @ the AFE, how is it? anyone using it?

Does the axle have a vent port?
Old 06-12-2018, 12:04 PM
glc's Avatar
glc is online now
Senior Member
Join Date: Dec 2006
Location: Joplin MO
Posts: 37,542
The brake line junction on top of the axle is also the vent port, it should have a hose coming off the top.

Thread Tools
Search this Thread
Quick Reply: leaky rear end


Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2018 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: