So I guess we can conclude from this that the 26" radiator used in axle packages is not always the max cooling unit. I also looked in Galen's parts book and, sure enough, the 055 was used in 440 powered 4-speed b-bodys "less max cooling". The only other application was for a/c cars. I guess max cooling and axle packages don't go hand-in-hand in this instance. Still, one has to wonder why...... life is a mystery....