Here is a picture of the drive flange that Sandwich just took off. It has to be taken off with a puller. I have seen a few of these come off without a puller and that is BAD!!! What happens is setting up the rear bearings on an original Cobra is a LOT of work. It is much easier if the drive flange does not have to be pressed on. You will understand why later when I show you what is inside of these hubs. Anyway, if the flange is pressed on, it helps to keep the entire system rigid so you are not entirely relying on the bolt to keep everything tight. If the flange can move, it will begin to "fret." Fretting is when two parts rub together and start to transfer metal from one surface to the other. The metal literally turns to powder as it grinds away. It is very BAD to have a flange move on a shaft. We use Loctite on loose ones when customers are dead set on keeping the original parts.
