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Eaton Truetrac Gear Oil

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Old 10-27-2011, 07:44 PM
xupkid2 xupkid2 is offline
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Eaton Truetrac Gear Oil

I just installed a Eaton Truetrac limited slip in my 2008 F250 and am wondering about what kind of gear oil to use. I normally use the Amsoil Severe Gear 75W/140 but read somewhere on the board that you shouldn't use synthetic with the Truetrac. Conversely, I read in the owners manual that the Truetrac differential is designed to operate in those lubricants recommended by the vehicle/axle manufacturer for conventional differentials.

Does anyone have any insight into what kind of gear oil I need to use. I don't want to have issues nor take any risks ruining the new LSD.

Thanks
Brian
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Old 10-27-2011, 08:35 PM
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golfmedik golfmedik is offline
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I used Royal Purple in my Silverado when I installed my Truetrac. I used the gear weight recommended for the truck as found in the owner's manual. Can't remember right of hand what weight it was though. You might also find that it says not to use friction modifiers with it as well since it doesn't have clutches to wear out.
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Old 10-29-2011, 08:22 PM
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Kid you put it in the front or rear axle? How do you like it?
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Old 10-29-2011, 08:58 PM
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I put it in the rear and used Amsoil Severe Duty. So far so good but havent driven it much.
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Old 10-30-2011, 07:38 AM
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User Sawtooth has the tru trac in his for a long time. Look him up and shoot him a vistor message. (you can't pm since you are new here).
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