Late in 1947, complete responsibility for the development and production of the engine was transferred to the Allison Division of the General Motors Corporation and some J35s were also built by GM's Chevrolet division.
Senere, i 1947, blev hele ansvaret for videreudvikling og produktion af motoren overført til Allison Engine Company som hørte under General Motors Corporation, og nogle J35 blev også produceret af GMs Chevrolet division.