I guess what confused me about the GM Master Parts Book is it listed this H033 differential carrier for applications "X" and "Y", which if IIRC stands for 1956 and 1955 respectfully, but also for "J" , which IIRC stands for 1960-62,for the GMC H035 differential. My GMC Master Parts Book X-161001 revised Dec 1960 refers to........as 1955.2 ..Y 1956 ....X 1957 ....T 1958-9 ..S 1960-1 ..N
Last edited by Bill Hanlon; 09/02/2026 3:38 AM.
'57 GMC 102, Original 347 V8, HydraMatic, 3.08 rear gear, added A/C, disk front brakes, HEI, AFB carb, '98 Honda Black Currant paint. T-boned and totaled 10/12
'52 GMC 152 Stake Bed, Original 228, SM420, added A/C, HEI, disk front brakes, '67 Chev 3.55 rear gear. Gets used as a real truck.
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