This is a new old stock auto part NOS gm in old original gm box This is a set of 6 new pistons with piston pins and retainers shows as .030 oversize and shows as fitting 1937 1938 1939 1940 chevrolet truck commercial and utlility models except GC models in parts book shows as passenger car and GC truck took a different piston number this is the truck number gm part # 602810
listed as fitting
- 1937 1938 1939 1940 chevrolet truck
