This part fits the following applications: 73-76 1/2 ton, 2wd truck - moraine cylinder (1976 - 2 door) 74-78 1/2 ton, 2wd truck - bendix cylinder 79-80 1/2 ton, 2wd truck 73-77 1/2 ton, 4wd truck, suburban - bendix cylinder 1975 1/2 ton, 4wd truck - moraine cylinder 78-80 1/2 ton, 4wd truck 73-75 1/2 ton, 2wd suburban - moraine cylinder 79-80 1/2 ton, 2wd suburban - with diesel 73-80 1/2 ton blazer (1978 moraine cylinder)