13 Since Currie's Super Eight is based on a '67 housing, we required the '67-styled spring plates and larger U-bolts. The U-bolts we already had and the new spring plates came from National Parts Depot's detailing items. We started the mounting nuts by hand, and then evenly tightened them in an "X" pattern. Make sure the spring plates are correctly installed. Otherwise, the shocks will not seat correctly.