94 4x4 Rear Dif gear oil... WHAT THE #@!*
#1
94 4x4 Rear Dif gear oil... WHAT THE #@!*
I have 2 F150 trucks and decided to change the rear diff oil... I can't get the same answer from any two sources as to what fluid/oil to replace it with!
When I rotate one tire the other opposite tire rotates in the opposite direction, so I assume it is limited slip...
I have a gallon of GL-5 80W-90 non synthetic and a 4 oz tube of Sta-Lube differential friction modifier... but I can't tell if it is the correct materials
Any help is appreciated
When I rotate one tire the other opposite tire rotates in the opposite direction, so I assume it is limited slip...
I have a gallon of GL-5 80W-90 non synthetic and a 4 oz tube of Sta-Lube differential friction modifier... but I can't tell if it is the correct materials
Any help is appreciated
#3
Senior Member
It uses 90w in the rear with 4oz. of modifier just make sure the oil is for limited slip if that is what you have but i don't think it is with the rotation you described.
#4
Senior Member
I have 2 F150 trucks and decided to change the rear diff oil... I can't get the same answer from any two sources as to what fluid/oil to replace it with!
When I rotate one tire the other opposite tire rotates in the opposite direction, so I assume it is limited slip...
I have a gallon of GL-5 80W-90 non synthetic and a 4 oz tube of Sta-Lube differential friction modifier... but I can't tell if it is the correct materials
Any help is appreciated
When I rotate one tire the other opposite tire rotates in the opposite direction, so I assume it is limited slip...
I have a gallon of GL-5 80W-90 non synthetic and a 4 oz tube of Sta-Lube differential friction modifier... but I can't tell if it is the correct materials
Any help is appreciated
#5
OK, cool... I DOUBLE CHECKED AND TIRES DEFFINATLY ROTATE OPPOSITE DIRECTIONS
The code for the axle inside the door is 19.
Thanks for the help people!
The code for the axle inside the door is 19.
Thanks for the help people!
Last edited by SPLAT; 08-17-2011 at 01:55 AM.
#7
Jesse
Code 19 is 3.55, but it is not LS. I have code H9 which is 3.55 with LS. Just straight gear lube will be fine in your example.
5.5 pints(2.75 qrts 2.6 litres) should the capacity +/- 0.3 of a pint.
When I get around to changing my rear diff oil it is gonna get some Royal Purple as that is synthetic and doesn't need any friction modifier added.
5.5 pints(2.75 qrts 2.6 litres) should the capacity +/- 0.3 of a pint.
When I get around to changing my rear diff oil it is gonna get some Royal Purple as that is synthetic and doesn't need any friction modifier added.
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#8
broke white boy
really just pull the cover and check it, you should check the ring and pinion gear teeth anyways for chipping. when you change the fluid.
this is LS, limited slip, posi, trac lock or what ever you want to call it.
this one is an open diff, one wheel wonder. single tire eater.
this is LS, limited slip, posi, trac lock or what ever you want to call it.
this one is an open diff, one wheel wonder. single tire eater.
#10
Old Bastard
Originally Posted by 95stepside
Little tidbit o information for y'all, any ford truck 1959 to present with a letter in the axle code is limited slip