rear diff oil change

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Sep 17, 2011 | 01:41 PM

renoduckman

Thread Starter

Tuned

Joined: Oct 2004

Posts: 442

Likes: 7

From: reno nevada

rear diff oil change

I know this has been talked about before. But when do you guys like to change your rear diff oil? I dont see it in my owners manuel. I have a standard diff, not the limited slip. Joe

Sep 17, 2011 | 02:07 PM

woodnthings

Cargo Master

Joined: May 2010

Posts: 3,047

Likes: 9

From: Snohomish, WA

Usually around a 100k. I changed mine at 60k, but I use mine to tow mostly.

Sep 17, 2011 | 02:18 PM

clintbonnie

Cargo Master

Joined: Jun 2003

Posts: 3,292

Likes: 6

From: Ardenvoir, Washington

According to my owners manual, maintenance guide, and I quote:
"Rear axles containing synthetic lubricant and light duty trucks equipped with Ford-design axles are lubricated for life. These lubricants are not to be checked or changed unless a leak is suspected or if axle assembly has been submerged in water.. Non-synthetic rear axle lubricants should be replaced every 3,000 miles.."
If you don't have a copy, go to:
https://www.fleet.ford.com/maintenan...ls/default.asp

Sep 17, 2011 | 02:34 PM

RainStroked

Senior User

Joined: May 2011

Posts: 223

Likes: 0

From: West ID

I wouldn't follow what the owner's manual says in this case, I change mine every 40-50k or so.

Sep 17, 2011 | 03:49 PM

Shake-N-Bake

Post Fiend

Joined: Sep 2003

Posts: 6,096

Likes: 26

From: Mesa AZ

I first changed mine around 140k and am coming due again in a couple of thousand miles. For sure I will change again before 300k. It is about 10th or 12th place down on the "PSD List"

Synthetic gear oil is amazing stuff...