Author Topic: Detroit locker  (Read 434 times)

Tor

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Detroit locker
« on: May 13, 2019, 11:46:55 PM »
What type of oil do you use on the Detroit locker end, thanks

Tor

1109RWHP

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Re: Detroit locker
« Reply #1 on: May 14, 2019, 02:11:28 AM »
Does not take anything special. it has no clutches to worry about.
https://www.eaton.com/Eaton/ProductsServices/Vehicle/Differentials/FAQforDifferentials/index.htm

SFM6S087

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Re: Detroit locker
« Reply #2 on: May 14, 2019, 03:25:11 AM »
Note that they do not recommend synthetic oil.

Steve

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Re: Detroit locker
« Reply #3 on: May 14, 2019, 10:28:30 AM »
Regular gear lube 80W 90

 No additive.

gt350hr

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Re: Detroit locker
« Reply #4 on: May 14, 2019, 02:10:21 PM »
   I see no reason why a synthetic can't be used. Nascar does. I have from time to time without any problem. Being a positive gear engagement design , the internals do not create heat in operation nor is there any possibility of slippage. Same reason friction modifier isn't needed. While on the subject. "My" experience is that synthetics are OK to use in 3.50 and "higher" ( lower numerically) gear sets . For 3.70 and "lower" (higher numerically) "I"prefer an 85-140 wt conventional gear oil , or single weight 140. Why? These gears typically have more tooth engagement ant naturally create more heat which thins out the oil more quickly. I find less gear wear with a 140 wt oil in racing applications when an oil cooler ( for the diff) isn't used and most of us don't use one. This is VERY important on Auburn and Traction loc units. True Tracs don't have clutches so they don't care.
    Randy
Celebrating 44 years of drag racing 6S477 and no end in sight.