My new (to me) 66 C20 has an extra set of coil springs welded on the back. Seems like a bad idea to me, but I don't know enough about it to say for sure. Any comments?

They were done in a rather sloppy fashion, as they are close enough to rub the originals. Also, the one on the passenger side is broken. I would like to take them to someone and just have the extras cut out (I'm assuming it's way too much work at home with a hacksaw), but I'm a bit concerned that the original on the drivers side may need the extra help, and/or may have been damaged.

If I do need to replace them, would there be any dis/advantages to going with C30 (or otherwise heavier duty) springs? Would they even bolt up? Tips on where to buy?


1966 Chevy C20 292