Well, i got a used frame for cheap with some shimano 105 integrated shifters. the front shifter works fine, but the rear wasn't working. tried a paint thinner soak incase it was just gunked, but that wasn't working. Decided I had nothing to lose, so I took it apart.

L
O
L


what a PITA. I don't think it's still back together correctly. I have the lever moving now, but there's no ratcheting noise. shoot me in the face please, it'll be more pleasant than those

oh, and in before "buy campy/sram, it's rebuildable" I have sram on my forrealz bike