[Spridgets] Time to replace the rear springs???

[ryan.kubanoff at comcast.net]

So my 74 RWA has been sitting a little funny the last few days. the drivers side rear has about a fists worth of clearnace between the top of the tire and the top of the inner rear wheel arch. The other side has about a fist and a half. 2 years ago I was told that i should get new rear spring and i did but then i was told that mine were fine so they have sat on the floor in my garage since then. I think it may be time to pull them out. 

I think the ones on there are original. the replacements are from Mo$$ before i knew better. My question is I need new hardware and was wondering if I should get the lowering kit? how does the ride look and feel with new springs? any other suggestions while I am doing this? 
Thanks 
Ryan