I replaced my cutlass, stuffing box, and new shaft when I purchased my B 32 over ten years ago. If the 34 is like the 32, then access to the coupling and stuffing box is quite difficult, thus adding a lot of time to the job. It's a good idea to inspect all and be prepared to replace some older parts
. Find out if your yard has done this job on the B 34 previously, as it helps. Other B 34 owners will probably be your best source of info.