Cub cadet 6284 driveshaft

[Working6284]

Hello. First time here. Where does one find the isolation join for the main driveshaft. This is a work in progress job. I have the one it came with. Its usable but beat up. Does anyone know the correct way to install it. I have seen them bolted flange to flange and offset flange to rubber. I have already replaced the bushings in the shaft tube and the yoke and u joint. Thanks Bill