The floor pedals were originally attached to the clutch housing, the parking brake bolted to the tranny.I have a 37 pu and a 46 big truck. The pedal assembly looks the same more or less on both. The bigger trucks use a clevis and bell crank from the pedal to the master cylinder.My 37 has the parts modified from a big truck so I cannot say for sure what the smaller trucks use.A guy here had good photos of mounting the pedals to a bracket on the frame if you are using a different clutch housing .Having fun yet?