Hi, we kept our Crown Bus parked on my parents property last year Between December and March. This year my father mentioned maybe we should put it on jack stands to take pressure off the tires for being parked for long time, is this valid? We did spend almost 3200 bucks on brand new tires lat year and we want to get long life out of them, he mentioned keeping a vehicle parked for long periods without wheels moving is bad for tires, idk the validity to this, I mean but how easy and what sort of jacks would I need to lift some weight off the tires and what rating? I think my 78 crown coach has a gwvr of 36,000 pounds but is empty at the moment other than the back half that we have already built out. I think Empty weight its like 18,20k lbs