These are black coil springs, steel hangers with ebrake cable bracket & urethane bushing shackles

This auction is for a pair of Lowering Coils, hangers & Shackles

This will lower your truck 2" Front & 4" Rear

Install should take you about 180 min.

Fits 

1988-1999 Chevy GMC C1500

Hangers look different than pictured