Installed Mag-Tech rear diff cover today

[ray101381]

since the rear is an E-locker does for recommend the limited slip additive?

 

[Raptor911]

YES.

since the rear is an E-locker does for recommend the limited slip additive?

 

[ray101381]

how much fluid did you use? did you use the motorcraft friction modifier or the ford racing one? i just ordered the diff cover now i need to get the oil and friction modifier

 

[InMotionJosh]

Ray, Mag-Hytec says they hold 5 Quarts.

 

[Mil T]

no need for friction modifier

There's nothing to modify in the E-Locker. It's metal to metal. The friction modifier is for limited slips that have clutchs in them. That's why you need the modifiyer to stop the clutches from sticking together.
Unless you took out the locker and installed a limited slip, good synthetic 75/140 diff fluid is all you need.

 

[CrownOffroad]

Looks good! Definitely on my mod list.

 

[NickPic83]

where was this found the cheapest?

 

[pat'sRAPTOR]

since the rear is an E-locker does for recommend the limited slip additive?

This is right out of a ford service manual and it says that it is NOT to be used with the E-locker rear ends!



Material Item Specification Fill Capacity
Additive Friction Modifier XL-3 (US); CXL-3 (Canada) EST-M2C118-A 118 ml (4 oz) to be installed before axle lubricant — Not to be used with Electronic Locking Differentials (ELD) Maximum Strength Retaining Compound
Loctite® 638™ — —
Motorcraft® High Contrast Hypoid Gear Marking Compound
XG-14 — —
Motorcraft® SAE 75W-140 Synthetic Rear Axle Lubricant
XY-75W140-QL (US); CXY-75W140-1L (Canada) WSL-M2C192-A and GL-5 2.84L (6.0 pt) — ELD only
2.60L (5.5 pt) — Non Traction-Lok equipped
2.48L (5.25 pt) — Traction-Lok equipped
Premium Long-Life Grease
XG-1-C or XG-1-K (US); CXG-1-C (Canada) ESA-M1C75-B —
Silicone Gasket and Sealant
TA-30 WSE-M4G323-A4 —
Threadlock and Sealer
TA-25 WSK-M2G351-A5 —

 

[Todd Turbo S]

The instructions call NOT to over fill because it will cause potential leaking. They call to fill between the low and high mark. I found that to be 4 1/2 quartz of oil with 6 ounces of Ford additive friction modifier.

I accidentally overfilled my F250 with the same rear diff cover and it leaked for two weeks.

Todd

 

[Todd Turbo S]

Additive

Here is a picture of the additive