I had to cut about 5/8" off the end of my input shaft, not a big deal. My motor is internally balanced with forged parts so I just used a neutral balance flywheel and then had the flywheel/clutch balanced together but if you order a 360 flywheel it comes with the weight because the older 360s were external balance the same as the 5.9. I got a used Lakewood bell and it works great. Just make sure whatever bell you get has the correct size bearing retainer hole because there are 3 sizes. I would recommend talking to Jamie at Passon over brewers he built my tranny and is way nicer and more helpful than brewers.