Eaton locker fluid type?

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Old 07-18-2009, 01:02 AM
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Eaton locker fluid type?

I just baught an Eaton locker for my 8.8 rear diff, do i have to run the 75-140 full synthetic with modifier or can i go with something like 85 140? and add modifier...
 
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Old 07-18-2009, 03:03 AM
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75W140 full synthetic with modifier.
 
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Old 07-18-2009, 09:54 AM
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k thanks!
 
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Old 07-18-2009, 12:44 PM
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Its an eaton truetrac are you 100% sure because its $50 in fluids here that i dont want to waist.
 
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Old 07-18-2009, 12:54 PM
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true trac uses gears instead of clutches right? so you dont need the friction modifier.
 
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Old 07-18-2009, 02:38 PM
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Hold the presses!

http://www.bobistheoilguy.com/forums...060477&fpart=1

Long read, but food for thought. I think I'd probably run 80W90 dino with no modifier. Maybe you should try to contact Eaton and see what their position is these days.
 
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Old 07-18-2009, 03:35 PM
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The following is from Eaton's website.
http://www.eaton.com/EatonCom/Produc...iteId=EatonCom

Eaton Posi

What kind of oil should I use? Can I use synthetics? Do I need a friction additive/modifier?
Eaton Posi units perform best when using GL4 (or better) mineral/petroleum based gear oil. A four ounce bottle of friction additive/modifier is also necessary for optimum performance.

Truetrac

What kind of oil should I use? Can I use synthetic? Do I need friction additive/modifier?
A quality petroleum/mineral based oil works best in the Truetrac units. We do not recommend synthetic oil. Friction additive/modifier is not required.

Detroit Locker

What kind of oil should I use? Can I use synthetic? Do I need friction additive/modifier?
A quality petroleum/mineral based oil works best in the Detroit Locker units. We do not recommend synthetic oil. Friction additive/modifier is not required.
 
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Old 07-18-2009, 07:17 PM
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Originally Posted by XL1200Ltd-Keith
The following is from Eaton's website.
http://www.eaton.com/EatonCom/Produc...iteId=EatonCom
thank you for doing what should have been done first off.
 



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