Towing | 2004.5-2005 Chevy/GMC Duramax LLY 6.6L - Ball Mounts | 2004.5-2005 Chevy/GMC Duramax LLY 6.6L - B&W Hitches - B&W Trailer Hitches 16K Ball Mount (4" Drop 6" Shank) | BMHD30012 | Universal Fitment