Diff Question

[dibble34]

Ok so appologies, but i have another question. I have done loads of reading on diffs, but am still left a little confused.

Once rebuilt i tighten so i can't turn the pulley in the middle of the diff. I then put in the car and turn both wheels, (rear or front) and make sure it doesn't slip before the Slipper .

My question is that if i lock 3 wheels and try and turn the 4th, i can. It is not loose, but not really hard to turn either.

Does this matter or is this ok?

Hope i explained this right!