I had a set of bad tarret toe links - by bad I mean lasted less than 5 days. I was sent out new, more expensive tie rod ends (apparently same as used on the CGT) and so far so good - but we shall see. I can also give you previous experience of dog bones from previous cars. When these unexposed ball joints are exposed to the elements the can and do ware very, very quickly. You have to think of these parts as true race parts - there is a reason the factory does not put them on street cars. If you live anywhere other than SoCal, order some rubber boots to seal the exposed joints before you install them - otherwise dirt will quickly get in and begin to cause their deterioration. This is not just a Tarrett issue - it is true of all exposed ball joints.