Baystate Jeepers

Ok I'm replacing my diff covers I have a 2010 jk sport. With Dana 30 frount and Dana 44 rear what gear oil do you suggest.

75W-90 synthetic

I use 85/140 In all my units, axles,trans (stick) , T-case. Marine red sticky grease everywhere. I have older units and might be different than what your require. Look in your book and then upgrade as they were talkin about street driving. Brand is personal preference. I use Pennzoil products . FjR68

Thanks