Bought for my '94 Explorer. If you're only replacing one shackle, you probably won't be using two bushings. Nuts and bolts are metric grade 9.8 which is good, about 90% above SAE grade 8. Good enough for this application. If you've got a good jack, a stem-breaking impact wrench, and the right head, it takes a leisurely hour to swap it out. Then it's time for a flashlight or a meat grinder or something. Attention, the petrol tank and the filler neck are not far away!