i have a 30 spline eaton e locker for a dana 60 axle it is still in my crawler and working well. the locker is used off road only. i am looking to get 500 out of it. it is for r and p 4.56 and up. may trade, looking for ar 15, 2 35 spline spools, just let me knowwhat u have. 801-602-0260 jordan