37 pickup rear end conversion

[New2restoring]

Good afternoon, ladies and gents
Investigating a C4 tranny swap from my original 3 speed, during my investigation, I have come to learn that the rear banjo axle should be exchanged as well. Those that have experience and can recommend why axle would work well/other options, love to hear your advice please. This is for a 1937 1/2 ton pickup. John

EDIT: Would like to keep my original wheels!