Recommended diff. fluid exchange?

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09-24-2011, 11:56 PM

#11

doode

3rd Gear Member

Join Date: Jul 2006

Location: British Columbia

Posts: 638

Just changed mine yesterday with Royal Purple.

Annoyed me that Ford didn't put a drain plug on the diff cover.

Extra step required.

09-25-2011, 12:09 AM

#12

6-Speed

2nd Gear Member

Join Date: Nov 2009

Location: AZ

Posts: 465

Quote:

Originally Posted by doode

Annoyed me that Ford didn't put a drain plug on the diff cover.

Extra step required.

There's an easy fix for that.

09-25-2011, 01:14 AM

#13

2007CalSpec

5th Gear Member

Join Date: Sep 2007

Location: Nor Cali

Posts: 2,059

I switched both the tranny fluid and axle fluid to Royal Purple two weekends ago. Car has 53k mi. FWIW, I'm also running Royal Purple in the motor.

09-26-2011, 11:34 PM

#14

doode

3rd Gear Member

Join Date: Jul 2006

Location: British Columbia

Posts: 638

Quote:

Originally Posted by 6-Speed

There's an easy fix for that.

you have clearance problems with your panhard bar ?

09-26-2011, 11:45 PM

#15

6-Speed

2nd Gear Member

Join Date: Nov 2009

Location: AZ

Posts: 465

No problems even with the larger diameter BMR PB. It's close, but there's clearance with the low profile cover.

09-27-2011, 08:56 PM

#16

ym42

2nd Gear Member

Join Date: Mar 2008

Location: NJ/PA

Posts: 330

105k miles on my rear differential and I just replaced the fluid. Went to AutoZone and got their off the shelf Valvoline Synthetic 75-140 Gear Oil and some cheap friction modifier stuff matching the Ford specs ... Used Permatex UltraBlack RTV... Pretty easy but messy job:-)