Over the weekend I installed a stock header from an '75 F model on my '76 750k to make sure everything was going to workout before ordering a muffler. Other than one leak, it went as expected. Now I have the issue of the brake pedal not clearing the header while attempting to engage the rear brake. I know the F models had rear discs, but does anyone know if the splines on the pedals are the same and if the F and K frames have the same brake spindle mounting locations? I'm really hoping its as easy as swapping out my stock brake pedal for an F pedal. I want to keep the bike setup for two up riding just in case, so I don't really want to swap to rear sets. Anyone know if this will work? If so, anyone have a F brake pedal to sell?