u瞳秤 "Nylon bush"
Triumph: TR2, TR3, TR3A, TR3B, TR4 and TR4A (1953-67) ? TR5/250 and TR6 (1967-76) ? Spitfire (1962-80)
steering column - uprated type
Manufactured from modern nylon bearing material which can operate with much closer tolerances than the original bush could.