Used factory shock lower mounting bolts for NA and NB Mazda Miata. These are the bolts and nuts that attach the bottom of the shocks to the control arms. The lower part of the front shocks are secured with bolts, lock washers, and nuts. The lower part of the rear shocks are secured with bolts and lock washers. 1990-1993 rear lower shock bolts are longer than the 1994-1997 rear lower shock bolts. The front lower shock bolts are the same from 1990-1997. 1994-1997 uses the same bolt for both the front and rear lower shock mounting bolt. Part numbers 9978-01-270H (90-97 front lower bolt and 94-97 rear lower bolt), 9992-11-200 or B037-28-091 (90-97 front lower nut), 9997-11-200 (90-97 front lower lock washer), and 9978-01-280H (90-93 rear lower bolt). Fits 1990-1997 Mazda Miata. Choose between 1990-1993 style or 1994-1997 style. Choose between 1 front lower shock bolt with lock washer and nut or 1 rear shock bolt.
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