No.
you should have a 4 wheel alignment done
no
no.not usually.
Yes
Have the car checked at a wheel alignment shop.
Your rear wheel may be squeaky due to lack of lubrication, worn out bearings, or misalignment. To fix it, you can try lubricating the wheel bearings, adjusting the alignment, or replacing the bearings if necessary.
Four wheel is preferred.
Yes, wheel alignment machines do need to be calibrated.
Yes. The new struts will throw off the camber; thus requiring an adjustment.
Did you get an alignment after replacing the axle?
A wheel alignment is what syncs your steering wheel with your wheels. It ensures your car will drive straight when your steering wheel isn't turned.
if you have independent suspention front and rear chances are a 4 wheel alignment can be done typically front wheel drive vehicles but not all.