I just bought a '95 K1500 Suburban.

The original window sticker says it has a Limited Slip rear end.
When I lift both wheels and rotate one the other side rotates in the opposite direction.

Is this normal? Or does it need rebuilt, Or has someone possibly replaced the rear end w/ a non posi?

It feels a little sloppy but makes no noises when rotating it by had or while driving.

Other info; 3.73 gears,160k miles.
Thanks