4Runner jumping like it has a rear locker?

I know the rear locker came as a option on 3rd gen 4Runners, but I don’t have the button, which means I don’t have a rear locker, what I do have is the car jumping around on tight turns like the diff is welded/locked when I’m in 4WD, am I tripping or is the front locked or what?

I have tried to keep my 4Runner on the road and as nice as I can, since I usually take my golf off road, but since I slapped 33’s and a couple inch lift I’m wondering.

I know the rear locker came as a option on 3rd gen 4Runners, but I don’t have the button, which means I don’t have a rear locker, what I do have is the car jumping around on tight turns like the diff is welded/locked when I’m in 4WD, am I tripping or is the front locked or what?

I have tried to keep my 4Runner on the road and as nice as I can, since I usually take my golf off road, but since I slapped 33’s and a couple inch lift I’m wondering.