These gears are for a 2 series 7.5 gm 10 bolt carrier,they were installed into a 3 series rear end before realizing they were for a 2 series not a 3 series .The gears were taking out and put back into the original box,Gears were never TURNED!!!! They have minor blemishes from where the bearings were pressed but thats it.They've been sitting in my closet for about a month now so I kinda wanna get rid of them so Im giving them up for cheap I originally paid $190 for them new,I'll take $100 + shipping.