The GEA & GEM are 6000 Series engines, to get that HD engine in a 4000 Series you had to order RPO-225 which added "A" as a prefix to the 6000 series code making it AGEA or AGEM.
Mike B
Mike Boteler
1956 Chevy 3100 Resto Rod 1952 Willys M38 Army Jeep 1983 Jeep CJ7 Laredo 1984 Jeep CJ7 +++++ Silver Spring, MD
