hey im installing some new rear hubs on my mayhem buggy so i can run it tmo, and like im trying to get the hex off so i can take out the axle and bearings and put it in the new hub but i can figure out how to get it off...like i undid the screw in the center of the hub and i was pretty sure that was it but nadda. then i just am stuck nand have no clue how to do this... so if you could help me asap so i can have it running to run it tmo morning for a little while that would be AWESOME!!!

Thanks
John