[macojoe]

for that much use Tandem is the only way to go!!

I had got some 5000# mono leaf springs form Northern tools when I did mine!! They were great!! They a a single spring that last longer as they are thick metal, the do not trap water between the other leafs, and there was never any squeaking ever again when they did get rust on them!
Just a thought? I have one pair in the celing of my basement cause they messed up and sent me to pair for one money! ;D