Dan: My GMC Master Parts Book 1939-1954 has 2102076 listed as:
"102AC, CC and EC 1940 AC. Front. 8 21/32" Long. 17 Long Splines. Incl Collar."
As you know, 102 is the long wheelbase 1/2 ton truck model.
I don't understand why it calls out AC, CC and EC models and then specifically says "1940 AC."
'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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