Ford ranger rear differential leak?

I've noticed a couple weeks ago my differential is leaking on side closest to bumper. Not much. Stuck to the differential. Is there an additive I can use to stop the leak? Thank you in advanceFord ranger rear differential leak

No. You need to remove the rear cover, clean the inside, seal the cover back on, and put in new oil. Ask a lube place how much to change the rear diff oil, that is what the job is.

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