I've got a near new set of 12 Bolt 4.56 gears I'll make you a deal on. Installed them, and after maybe 20 miles decided they were going to be too low for what I had planned.
pm me price, also why no front set? is the front for a 10-bolt? if so i might just pick up a 10bolt. also what carriers are these gears for, the 12 bolt had a carrier split at like 3.42 i think