You don't state year, make or model of your pickup, but just in case, the 1939-53 GMC Master Parts Book calls for the same clutch release bearing for all 1/2 ton thru 2 ton trucks no matter which transmission. Part number is 909422. Same part number is listed in the 1929-54 Chevrolet Master Parts Catalog for "all" 1938-54.
'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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