If it's the big Graflok springs then I'd try cleaning and lubing... as others already suggested. I can't remember the way they're made but, if they're coil springs, then maybe they just need to be tightened another turn?
They resemble clothespin springs. Tightening another turn won't happen. What might work is shimming the ends of the springs.
04-26-2012, 06:15 AM
Thanks again for all of the replies. I'm not in a hurry to get this done so I will carefully weigh all of the options presented. Will post my final solution when done.