I have a option of buying a 35 banjo complete with brakes, wheels and driveshaft. One wheel is perfect the other is junk. No idea on condition yet but looking at the brake drums it looks complete. My question is can the original brake drums (has cooling rings) be used with hydraulic brake backing plate? Have spent the last few hours looking at posts on the Hamb and the Barn with really no better understanding if it's possible?