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No they don’t spin at allDon't spin freely?
As in when you spin the wheels by hand, they only make 1 -2 spins and stop?
Could be wheel bearings - mine did that, but on the front.
Could be a calliper slightly stuck.
Could be the hand brake shoe stuck.
Could be the wheel out of balance.
No car is in park with handbrake up. The only other thing I can think of is I overtightened them last time, not sure if that damaged something.
you've solved your own problem.
Hand brake is up / on / engaged / working / doing it's job