PLEASE, when asking a chassis question, let us know what chassis you have. Without that information, we really can't give good advice.
By going to your profile and looking at past posts, looks like you have the F53 chassis. So, leaf spring suspension.
Rear stabilizer (assume you are talking about the sway bar/panhard rod)will NOT cause a lean.
Couple of causes:
One side loaded heavier than the other.
Weak spring
Worn shackle
That is the ride height difference?
Common remedies for the low side:
Add a leaf
Add a spacer
Replace spring pack