My 87 e reg cti failed the mot today on drivers seat being insecure and front brake balance 29%. Ive ordered new brake disks and pads but im unsure what to do about the seat, ive taken it out and seperated all the frame and welded one side of every joint to sort of stiffen it up and put it back in but if it fails again has anyone got a spare or suggestions to tighten all the loose joints up?