this is the clutch pedal out of my 32. the spot welds im pointing to are possibly broken on yours. its bolted in three spots, 2 bolts go through your firewall and hold the clutch master on, the third is under the dash you can get to it with a 3/8 rachet small extension an 12mm socket. there is also a clevis pin that is in the pedal that you will need to pull out, its for your master cylinder rod. once the box is out you can either TIG or MIG weld it or buy a 2nd hand unit, or if your prepared to wait a few days get a nismo one from nengun or other supplier
pedalbox.pdf