clutch drivers


i picked up a kart a few weeks ago an in the deal i got a set of drivers but not sure what clutch they fit.... the drive flange that snaps into clutch basket is 1 inch wide... where the bully drivers are only .800 wide anyone know off hand what they fit.... i have 12,13,14,15, two 17,18,19,20 drivers if anyone interested in them looking to sell them make offer... i only use bully an flame clutch with bully conversion so i have no use for them.... thank you
do they look just like the bully drivers only they are a little bigger in size? if so, you have the horstman greased lightning drivers like said above