[ZEKE68]

What ratio gears do you have in it now? I guess its not an open 3.73. I rebuilt my 12 bolt 3.73 in 2018, and added a limited slip. The new Eaton Limited slip carrier was just under $500.00. Add the bearings and seals and it would be over six hundred just for parts. I did mine myself so that's all I had in it beside the time spent. There is quite a bit of work rebuilding and setting up the rear end, so I also don't think that 2k is excessive. I am running a 454 big block, about 400 HP / 500 ft/lbs. with a 4L80e with shift kit. I push it some but don't try to do burnouts. I figured that the light rearend of the pickup would protect the 12 bolt, due to less traction. But you are going to be pushing more through it, and it all depends on how much you beat on it.