I can't seem to find just the springs available for purchase. I did put new strut inserts on all four corners, but my right rear has a bum spring and it ocasinally hits the bump stop on rough roads. This is the only cause I could think of. Does anyone have any input?

If I could just find the spring, it would be an easy swap. Did the old spring kill my new insert? I'd rather not buy a whole new strut assy. just for the spring.

thanks!