Hi,

I want to change the rear and front axle oil.

I don't know if i have a 8.8, 9.75 or 10.25 axle.

What do i have to take care of when changing oil?

How do i put out oil and how do i refill?

Other advices welcome!!

BAST.

 

What are the specs on your truck? Motor? 2wd, 4wd?

 

Oh sorry about that!!

It's a 2006 F150 crewcab 5.4L 4x4

 

What is the axle code on the door? If it has traction lok, it will need a viscosity improver additive.

But, the 9.75" rear takes 75W145 Synthetic, with additive maybe.

The front takes 75W90 regular lube.

The rear is drained by removing the rear cover. To fill either you may need a suction gun that will suction out the bottle and fill the diffs.
The rear uses rtv for a gasket. I recommend buying a real gasket because if any oil gets on the rtv before it sets, it will leak.

 

Hi,the code on the door is B6.

Can i find this gasket on ebay?

 

You have a 9.75" rear and a 8.8" front, and you have limited slip in the rear.

The rear requires 75W140 full synthetic, with a bottle of friction modifier. The front takes standard 80W90.

 

Thx glc

What about the gasket?

Can i find it on ebay?

 

I have no idea. RTV will work fine if it's the correct type and used properly.