Bolt In S10 4- Link "Race" Kit WeldedThis bolt in weld in 4 link setup is engineered to use factory 19822003 holes and mounting points, meaning no measuring is necessary. Designed for higher HP setups with a 9" rear end housing, this kit provides everything you need to get your S10 race ready (see pictures for referencethe housing we designed around is extremely common). Included Components: Basic 4 link setup (upper and lower torque boxes) Upper torque box brace brackets Frame box