intake hardware

i bought the 3/4" pipe, however my hose doesn't fit over it. The inner diameter of the hose is 3/4 while the outer diameter of the pipe is 1". The thread is 3/4 though, so i'm not sure the 1" piece from year one will work.

why does all the little stuff take the most time and effort? can swap a rear end in an afternoon but can't get some little fitting to work right...

thanks