Gear oil

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10-13-2007, 07:59 PM

jst98gtmustang

3rd Gear Member

Thread Starter

Join Date: Aug 2007

Location: WV

Posts: 848

Gear oil

Hey guys,
im installing my 4:10 gears tomorrow in my 98 mustang gt .i need to know what kind of oil should i use??
Brand and Weight.

Thanks

10-13-2007, 09:03 PM

02WhiteGTVert

3rd Gear Member

Join Date: May 2007

Location:

Posts: 910

RE: Gear oil

Motorcraft 75w-140 and 4oz. of friction modifier.

10-13-2007, 11:30 PM

SINISTER

5th Gear Member

Join Date: Jul 2006

Location: Miami, FL

Posts: 2,284

RE: Gear oil

I used the Royal Purple gear oil. Already hasa the additive in it. I have had no problems with my gears since I installed them.

10-14-2007, 07:14 AM

xcodegt

3rd Gear Member

Join Date: Feb 2007

Location: Jefferson, Georgia

Posts: 564

RE: Gear oil

Quote:

ORIGINAL: SINISTER

I used the Royal Purple gear oil. Already hasa the additive in it. I have had no problems with my gears since I installed them.

Same here. 75W-140 Royal Purple. I have not had 1 single issue with it

10-14-2007, 11:18 PM

jst98gtmustang

3rd Gear Member

Thread Starter

Join Date: Aug 2007

Location: WV

Posts: 848

RE: Gear oil

Got my gears in i went with the Royal Purple oil
and boy i tell you what.IT ROCKS!!!!!
I love the gears,and the install went super smooth aswell.
Feels like a new car.

Thanks for your guys help!!

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