Twigs,
You can do this simple job yourself.
Jack up the rear end, take the shackles loose. Use a block of wood between the rear of the springs and the frame. Jack to release the tension. Slip the shackles out. Get new eyes for the front of the springs, knock (or press) the old ones out. Knock/press the new ones in. Pieces of two by four (support the spring over it length except the eye area) and a socket you can spare that fits the diameter of the eye and a big hammer.New shackles for the rear, Jack with the block in place to hook up the rear shackles. When hammering, wear goggles. Cost a buck or two. Piece-o-cake.
The front end work, just take the old one out and put the new one in. Nothing to it. Check alignment, afterwards.
This is the kind of work that gives one satisfaction and joy in mechanics to do. You can't go wrong. Get some suds and ask a buddy to help you. No buddy? Ask the girlfriend or missus to help. Promise diamonds. If afterwards they remind you of the diamond promise, just merely say you were kidding. They will then forget about the promise and never mention it again. For sure.
Good luck with it. Don't pay anyone no stinkin 500 for labor on this project.
Best,
Charlie
