gear oil for ford rear

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chevy art
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gear oil for ford rear

Postby chevy art » Fri Sep 08, 2017 12:08 pm

what brand and weight gear oil should be used in my fore 9 inch true trac rear. car is street driven thanks art

mag2555
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Re: gear oil for ford rear

Postby mag2555 » Fri Sep 08, 2017 12:42 pm

How about a 80w90 GL5 rated lube with a bottle of limited slip additive.

77cruiser
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Re: gear oil for ford rear

Postby 77cruiser » Fri Sep 08, 2017 12:45 pm

True Trac doesn't have clutches does it?
Jim

ProPower engines
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Re: gear oil for ford rear

Postby ProPower engines » Fri Sep 08, 2017 12:59 pm

I would suggest Redline full syn. light weight shock proof gear oil in the blue and white bottle.
The torque sensing differentials really like the full syn. oils and if you do beat on it it has the shear strength needed for hard working race applications
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RCJ
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Re: gear oil for ford rear

Postby RCJ » Fri Sep 08, 2017 2:17 pm

If you have a lot of power or really deep gears (5.13,5.83 etc..) you will get less wear with 140wieght

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Re: gear oil for ford rear

Postby ProPower engines » Fri Sep 08, 2017 2:23 pm

RCJ wrote:If you have a lot of power or really deep gears (5.13,5.83 etc..) you will get less wear with 140wieght


X2
If thats the case with a steep gear use the Red-Line 85/140 shock proof red
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treyrags
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Re: gear oil for ford rear

Postby treyrags » Fri Sep 08, 2017 2:30 pm

Amsoil 75/90. Put it in and forget it.
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