- 2" Drop spindles (L+R)
- 1" or 2" Rear Drop Shackles (L + R) --- Shackles have RB Style (Rubber Encased) Bushings. No Squeak and NO greasing required!
- 1999 - 2000, 2004 Chevrolet Silverado 2500 / GMC Sierra 2500 (Must have 8 Lug and 6 Hole Factory Hangers)
- 2001 - 2003 Chevrolet Silverado 1500HD / GMC Sierra 1500HD (Must have 8 Lug and 6 Hole Factory Hangers)
- 2002 - 2009 Chevrolet Silverado 2500HD / GMC Sierra 2500HD (Must have 8 Lug and 8 Hole Factory Hangers)
- 2002 - 2009 Chevrolet Silverado 1 Ton / GMC Sierra 1 Ton (3500 / 3500HD) EXTENDED CAB (Must have 8 Lug and 8 Hole Factory Hangers)
- 2002 - 2009 Chevrolet Silverado 1 Ton / GMC Sierra 1 Ton (3500 / 3500HD) CREW CAB (Must have 8 Lug and 10 Hole Factory Hangers)