GMC lists this number (1512329) as fitting the following: 100-350FC 1950 capillary type, 400HCW, HCW, 100-22, 150-22, 250-22/ 350-24, 400HCW, HCS, S400-24/ F470-30 All Gas Capillary Type prior to 1954. It replaces 1512260. The Gauge has the numbers 1512701 and 1512704 on it. 1512701 fits the following Chevrolet trucks with a white needle:1947-53 Commercial and Utility (EXCEPT D.D. and C.O.E.) 1954-551st series FFC $75.00 plus shipping