27 spline Dana 30 Lock Right Locker.
This will fit any standard Dana 30. (Jeep TJ/ YJ Wrangler, ZJ Grand Cherokee, XJ Cherokee, MJ Comanche, WJ Grand Cherokee, etc...)
Lunchbox style. 3.73+ case/ open carrier.
Used. Pins, springs and cross shaft seem to be in good condition.
Works fine.
$175...