SEAN C. - CC 72's have an internal brake rearend. There's a lever about 5-6 inches tall on the front of the transmission under the sides of the frame. Make sure that the top of that lever moves backwards just a bit as You release the clutch/brake pedal. If it doesn't You may want to back off the square headed bolt (turn counter-clockwise while looking at it) & jam nut on the bottom of the lever and give the top of the lever a light tap with a soft board or rubber mallet.
Where abouts did You "open" the transmission and inspect the brake? The brake is actually WAY down in the bottom front part of the assembly. You should jack up both rear wheels and turn one of them. The brake actually applies thru the differential so if You spin one rear wheel one direction and the other wheel spins the opposite direction You know the Diff is O-K at least.
These Cubbies are pretty simple mechanical devices, but You really should have a manual or at least investigate the Parts look-up to see how they're put together.
Where abouts did You "open" the transmission and inspect the brake? The brake is actually WAY down in the bottom front part of the assembly. You should jack up both rear wheels and turn one of them. The brake actually applies thru the differential so if You spin one rear wheel one direction and the other wheel spins the opposite direction You know the Diff is O-K at least.
These Cubbies are pretty simple mechanical devices, but You really should have a manual or at least investigate the Parts look-up to see how they're put together.