Differential service

PowerstrokeDriver2 · #1 (**permalink**) 05-05-2012, 08:57 AM

What do you use and how much? I have a 3:73 LS

Dirty_Stroke · #2 (**permalink**) 05-05-2012, 09:24 AM

Motorcraft 75W140 Synthetic with Motorcraft friction modifier. Put the friction modifier in first, then fill the rest with gear oil until it overflows out of the full plug. Then your good to go.

PowerstrokeDriver2 · #3 (**permalink**) 05-05-2012, 09:27 AM

hey i have another question does the left rear spin on the limited slip?

Baddestt · #4 (**permalink**) 05-05-2012, 02:26 PM

The limited slip powers both rear wheels up to the resistant capability of the clutches. If the clutches are wore out, you'll get the one peel wonder. Get a Detroit locker and be done with it

Dirty_Stroke · #5 (**permalink**) 05-05-2012, 06:11 PM

I agree. Put a Detroit and be done. That's my plan when I get the coin. I have the factory limited slip and I still get the one wheel peel.

**Galaxie** · #6 (**permalink**) 05-07-2012, 05:44 AM

What diffs are you guys running? They are SO expensive for these trucks!

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