This is a total small business set-aside procurement for 7 gear assemblies, speed decreasing (NSN 3010-01-570-7721), with an option for 7 additional units, manufactured by Meritor/CAGE 3D6E9 under part number A86015445. The buy is restricted to the specified part numbers, and only approved sources or distributors will be considered. It will be a firm-fixed-price contract with FOB destination. The solicitation includes a DLA Reverse Auction provision; if a reverse auction is held after solicitation close, contractors must be registered in the reverse auction system and the participating representative must complete online training beforehand. Registration and training information is available at https://dla.procurexinc.com, and related questions can be directed to the contract specialist.