8-1/4" lock right locker?

Not in an 8.25, but yup. Works just like a detroit locker. Straight line accel, both axles are locked together like a spool. When you go around a turn, the differential unlocks and allows the outside axle to turn faster, basically becoming an open rear on turns......UNLESS you go through the turn under a lot of power. Then they stay locked. That's not too fun on icy roads. But the units work WELL.