alcjphil

This can be done, but the process is time consuming. First, you have to find a replacement hub whose flanges are the same diameter and have the same number of holes as your current hub. Next, you have to completely disassemble your wheel into its component parts taking care not to mix up the drive side and non drive side spokes. After that you rebuild the wheel using your new hub. I have done this myself, but most shops would not consider reusing spokes so they would want to sell you new ones. The cost of the hub, spokes and labour might be more than you are willing to spend. I would urge you to live with your current setup, sometimes hubs become louder over time. You may at some time wish to upgrade to better and louder wheels. Having spare wheels can be useful if you have unexpected last minute flats or other problems just before a ride
Freehubs are specific to the brand of hub you have and a replacement will be the same as yours, you can't just use any old freehub