Also looking at Comet gearbox
I just purchased this week the same gearbox from Ebay. I did some research and it looks to be ok for light duty. The shifter is plastic and cheap, I may replace before I mount it. If you would by the one online I would appreicate a copy of the manual. I did not recieve one and I am trying to figure out what type of oil it needs. I did see this gearbox is rated for a max of 16 HP, I am using a 10 HP. From what I have seen, I wouldn't go any higher then 10HP. Good luck if you decide to purchase. If anyone else has a manual for me please let me know. Thanks!