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4.10 gear set for 8.5". Came in a rear so I don't know much about it, but appears to be GM and (to my uneducated eye) has a good pattern. Was completely quiet when I ran it. $75+shipping
Set of 8.5" bearings and races - two differential plus both pinion bearings, plus a hogged out set of pinion bearings for setup, plus several standard crush sleeves and a fancy Ratech sleeve. $50+shipping