10.25 373 LSD Rear End - Which Fluid and How Much?
Truck has 170k, decided I might as well change the rear diff fluid and paint the cover while I'm at it. I looked at the tag on the rear end.
It says: S-115 L , Then on the next line: 3 10 2 1E03 I take this to mean it has the 3.73 LSD Rear, which is expected since it's a 2001 7700. Anyway, I know I need to add friction modifier (unless it already has it in the fluid). But I have no idea which fluid to get for it. Is it 75/140? 75/90? 80W/90? Also, how much should I get? I also read that gaskets pretty much don't exist for this rear end, so I'll use black silicone RTV no problem. Thanks for your help. |
75W140 full synthetic, 7 pints. Get friction modifier from the Ford dealer.
|
All times are GMT -4. The time now is 08:34 PM. |
© 2024 MH Sub I, LLC dba Internet Brands