OUTBOARD MOTOR 4HP 5HP LOWER UNIT ASSY FOR YAMAHA 4 HP 5HP LOWER DRIVE GEARBOX & PUMP FITS MOST 1977 -2013 4,5 hp MODELS ,2 STROKE 6E0 6E3 model This is the long driver shaft (90mm) gear box assy,we also have the Short shaft assy Owning to mistake freight cost setting,and we can not change it on systerm,Contact us before you place order.We will adjust the freight cost for you.