I've been wanting to add a light bar to my disco for some time , especially since having to drive the flooded streets after Harvey in the dark. I found a simple solution if you have the later Disco II with the fat roof bars. These are 2 1/2 inch diameter. I purchased some 2 1/2 inch saddle U-bolts (intended for exhaust pipes) and a 50 inch curved light bar. The light bar mounts to the U-bolt directly. The light bar is not as noisy as I feared - roughly the same as having cross bars fitted.