In Our 1964 Cherokee 180 the right seat is much softer than the left which makes it sit much lower. With no one in the seats they look same height and it doesn't seem to make much difference if it's a 150 or 200 lb person in it. A couple of stadium cushions helps but what a pain. Anyone else experienced this and/or have a solution. I am not sure if the springs are weak or padding degraded. Definitely want to resolve the problem but not really wanting to spend tons of dollars