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Discussion Starter · #1 ·
I recently purchased a 96 f250 7.3 4X4, i'm wanting to change all the fluids on it but wasn't sure what gear oil to use for the front differential? Could i use a gear oil which comes with a limited slip additive for the front, or is it strictly for the rear diff?
 

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front takes 75w-90 non synthetic no additive needed.

rear takes 75w-140 full syn with limited slip additive
 
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