I know that the 400, 426, and 450 all use the same pressure plate and other clutch internals, would this mean that I could put a 426 complete clutch (basket, etc) into a 450? I know that the primary gears are different, but if I swapped the primaries would that be the only (operational) difference? The specifics of my question are that I have a slipper clutch for my (now internally demolished) YZ426 and I want to know if it would fit a 450, if I went that route. It has a Hinson basket which is installed with bolts, so I was thinking I could get a 450 basket, drill out the rivets, and bolt the Hinson slipper to the 450 primary gear. Sound reasonable, or should I just sell the 426 slipper and get a 450 specific? I am all about getting what I have to work instead of simply buying and bolting stuff on, especially since I only have about 10 hours on this clutch.