M1755 Rear of Rear Leaf Spring Shackle Kit for Chevy/GMC S10 (1982-2005) Kit Contents: (2) M5112 Bolts (4) MUBW154 Washers (2) LNC103 Lock Nuts (1) MR480 Silent Block (1) 4 inch Center to Center Shackle For vehicles with 9/16th inch bolts