This is a new old stock auto part NOS gm in old original gm box This is a powerglide transmission short planet pinion assembly shows as fitting 1950 1951 1952 1953 1954 1955 1956 1957 1958 chevrolet passenger car and corvette models with powerglide transmission gm pART# 3743846 changed to 3764366
listed as fitting
- 1950 1951 1952 1953 1954 1955 1956 1957 1958 chevrolet and corvette
