54 inch bar roof mount?

[884x4310ci]

Hey guys. I had a 54 inch curved led light bar on my 04 truck. Now that I am getting this 94 together. I want to mount this light on on. But the brackets I had on the 04 don't fit. (Kinda thought they would not)
what did you guys do to mount led bars to your roofs ?
thanks guys.

 

[884x4310ci]

Well made the gmt800 brackets fit on the gmt400 truck. They needed a bit of bending but git it to work!