Twotone, there are some 3.38 gear ratio's out there but hard to find. Someone here mentioned looking for a GMC/Chevy that is an automatic for the 3.38
I got lucky. Just a week ago today a fellow bolter gave me the rearend out of his 59 Fleetside. When I got home and pulled the over and counted the teeth I was in shock....a 3.38 which will replace the 3.90 I had in my 52panel.
(I put the 3.90 in to replace the old original torque tube 4.11)
Don't give up yet.
