Personally, I'd get a new Delco rack and bushings and call it a day. That's the kind of job I only want to do once. If you're sure it's the rack that is. Also, depending on the model you may have Magnasteer. Look down near where the boot is on the rack and see if you have a blue electrical connector plugged into something. If so then you have Magnasteer and will need that style rack.