Best I’ve seen so far was $4k. They tend to be in the $5k range. You can recoup some of that money selling your axles if you’re patient. Two JKs ago, I bought a rubicon front axle for $1600 then sold my D30 for $650 so I ended up less than the price of a locker alone.Debating between gears and lockers on my sport s or uses rubican axles. What's a fair price for a used set with everything there to bolt on?