I have been running a Bravo 1 with all of the Teague aftermarket parts and it has broken twice in the last there years. I was thinking of getting the imco extreme advantage SC drive complete with upper and lower unit. This seems like the way to go using the XR gears. I wanted to get the bigger prop shaft with it. The drive is on a 26 Howard cat with a blown 572 (1000HP). I wanted to know what people think of the IMCO extreme advatage SC drive. I also wanted know about X dimensions, shortend drives on the Howard if anyone knows. I have a lower case with nose cone,HD verticle shaft and other parts I want to get rid of.