changing rear end fluid

[urban96]

how much am i gonna need? i searched but got mixed answers

i know im gonna need 75-140 gear oil but is it 2 or 3 qts?

also i have a rear end girdle cover on there if that makes a difference

is there a fill hole like the trans where i just fill er up untill it comes out?

 

[Kilgore Trout]

I think it is 2 quarts. I think your car actually uses 80W-90 conventional gear oil. Yes, you fill until it comes out the fill hole.

 

[TripleBlk]

how much am i gonna need? i searched but got mixed answers

i know im gonna need 75-140 gear oil but is it 2 or 3 qts?

also i have a rear end girdle cover on there if that makes a difference

is there a fill hole like the trans where i just fill er up untill it comes out?

Yeah, it's about two quarts, but you will also need the special friction modifier from Ford.

The fill plug is at the front of the rear end "pumpkin" on the driver's side, but on my car (at least) the dogbone damper gets in the way, so I find it is easier to remove the passenger side axle vent (15mm wrench), hook up a gear oil pump from Wally World, and done ! You may like the smell of gear oil in the morning, but I really doubt it ! good luck.

 

[urban96]

do i still need the friction modifier with an auburn differential?

 

[lvmustanggt]

get Royal purple 75w140 2 quarts . no need for friction modifier cause they got that in there oil. I have 3.73 frpp gears