The first link is for the lower power hub. However, someone mentioned they run them as it's the weakest link in the drive system should you strike something with the prop.

This is the "solid" hub kit for 400+ HP

https://www.ebay.com/itm/23373104311...Bk9SR6SUhcPzYQ


I am not experienced to recommend anything to anyone. I'm just trying to help out where I can.

Can you tell more about your experience with that 22 Scarab? I have a 22 Scarab with a 548, XR drive, and started with a 30p Bravo prop. Like you experienced, it would bow steer very badly. A buddy had a 26p Bravo 4 blade but it was a lefty. I tried it just to see, and it calmed the boat down a lot and worked decent, but would make the boat list to the right. Next I tried a 27 Mirage plus, and the boat was awesome in every way, until you got to 73mph or so. Then the prop would blow out, every single time. This was the best prop I tried on it to this day. It carried the bow well, was super stable, etc. But I kept looking because of the blowout. The prop had a vibration to it, so I am thinking maybe it had a bent blade (can't visibly see anything wrong with it).

Since then I tried a Hydromotive 4 blade cleaver and it worked well for top end, but had a lot of slippage in lower and mid cruising speeds so I didn't like it. The 27 Mirage would do 70mph at 4,000rpm.

Later yet I got an Imco -2 shorty and a out of the box stock Bravo 28p four blade. You have to finesse a little to get it on plane, and it has a lot of slippage at speeds under 40mph or so. In the lower 70s it is gaining speed as you are trimming, then the boat will start to curve to the right and you have to trim it back down some so can't really go any faster. My boat does not seem to have gained anything from the shorty and it does seem to like the 3 blades better. I would like to try another 27 Mirage plus that is known to be good and see if I still experience blow out at high speed.