UNIVERSAL WEEDWHIP GEAR BOX ASSY. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ COMES WITH 2 SQUARE, 4 SPLINED  & 2 OBLONG DRIVE SHAFT ADAPTERS 4 DIFFERENT RUBBER DRIVE TUBE INSIDE BUSHING ADAPTERS EASY TO UNDERSTAND INSTRUCTIONS  GEAR BOX USES A STANDARD ECHO BUMP & FEED HEAD 3/8 LHT FEMALE THREAD  YOU MAY NEED TO CHANGE  BUMP HEAD AND THE CUTTER GAURD       FAST & FREE PRIORITY        SHIPPING                     $ 74.99         Return shipping costs are Buyers responsibility and item MUST be in original package, undamaged and no writing on Original OEM box if applicable. Please remember that ordering the wrong part is not All-pro's fault and would appreciate contact with us before opening an Ebay return.