Robert, in this case, an "Okie job" refers to installing an Okie bushing, apparently so called because it was patented in 1946 by T.C.Gerner of National Machine Works, Oklahoma City. The prior post by NH suggested that the reason the transmission fluid stopped leaking out of the ball housing was that all the fluid drained out and was no longer there, that it may have drained down the torque tube (potentially overfilling the rear axle housing).
In case you aren't familiar, the Okie bushing assembly includes two bushings and a seal. It completely replaces the forward torque tube bushing and provides an additional rear bushing and the seal that keeps transmission fluid in the ball housing where it belongs. The repair bushing assembly was developed to be an easier fix than what the shop manual called for at the time - disassembling the rear end and removing the driveshaft - to remove and replace the two stock torque tube bearings and seal. The Okie bushing can be inserted once the forward bushing is removed, with the driveshaft still in place and without disassembling the rear end. Fixes both worn torque tube bushings and bad seal in one operation. Still available in three variants for different model years, from various parts vendors (sometimes misspelled as Oakie Bushing). See the image...
I thought it was sort of cool to see the original patent, which is here:
Okie Bushing US Patent 2,403,520
