Perfect kit upgrade from rack to a floor tom. Way cheaper than buying all components by themselves. Since there's no schematics in the kit, you need to be really cautious about all measures. Take a look at some pictures of the floor tom size you have. The position of each bracket is in centered between two lugs. So the only tricky part is to find the distance from the bottom edge - remove the STM mount from the top lugs and put it on the bottom lugs. This the way to find what's the right distance from the bottom edge. Beware with drilling. Do it slow, starting with 2 mm. drill, 3 mm, and finally 4.3 mm. I preffer this way, than drilling straight with 4.3 mm. The end result is clean holes I'm really happy with.