Bolt In S10 4- Link "Race" Kit Unwelded DIYThis bolt in weld in setup uses factory 19822003 holes and mounting points, so no measuring is necessary! Designed for higher HP setups with a 9" rear end housing, this kit provides everything you need to complete your 4 link setup (see picturesthe housing we designed around is extremely common). Kit Includes: Basic 4 link setup (upper and lower torque boxes) Upper torque box brace brackets Frame box brackets Crossbar with supports to tie the frame