Do you have the full float Dana 25 (WW2 jeep axle) or does your CJ-2a have the Dana 41?
Herm the Overdrive Guy has full float kits for flatfenders, he may be able to help you out making some custom shafts:http://www.hermtheoverdriveguy.com/id2.htm
43 Ford GPW 92098
53 Dunbar Kapple M100
Sold: 61 CJ-5, 41 T207 WC-1 Dodge closed cab pickup
USMC Tanker (1811, 1812), 85-93
ASE Automotive Master tech, former Chrysler-Jeep Level 4 Mastertech, CA state EA smog license