Brakes fell out on my SUNL90 also. I understand there is a clip that holds them in. Is this a real pain to figure out, does anybody have a pic or drawing of how it goes back in. I ordered the pads but looks like might need a picture. By the way, my frame broke also on the rear. I disassembled the machine and MIG welded some support angle. It definitely won't break in the same place again.

 

Call me Monday and I can email you a picture.
Youth ATV Raceway ATV