Gen Y Mega Duty 2.5in Shank 12in Drop 3K TW 21K Hitch w GH 061 Dual Ball GH 062 Pintle Lock Elizabeth Palmer, MD HMG Primary Care at Colonial Heights. GEN Y's Mega Duty Adjustable Drop Hitches start at 10,000 LB towing capacity and go up to 32,000 LB towing capacity. There are multiple drop options as well depending on your trailer towing needs. Datasheet Catalog Dual Ball & Pintle Lock 21K Towing Capacity Fully Adjustable 3K Tongue Weight