I just got an email back from Roger Brown, from in response to my question on the availability of the new oiling system for G50 series transaxles:
"Indeed-we are currently working on a new internal oiling system (spray bar type) which will allow for additional
lubrication for the gears and ring and pinion for the G50's. This requires professional installation (preferably by us), remote cooler, lines, filter and pump with only 2 provisions needed for suction and return on the gearbox housing. The price for the system is typically incorporated with the
rebuild of the gearbox. If your box only needs the minimum requirements (main bearings, synchros, gaskets and hardware) and the oiling system, price would be $2825 parts and labor not including shipping or exterior components of the oiling system"
He then goes on to say that those components would include the cooler core at around $150. A pump is needed and he quotes a Tilton 12V for $295. Although, I swear, Pegasus has the exact pump for $199.49 - part no. 1239. And, of course, you'd have to have fittings and lines and perhaps a temp sender. If you really wanted to go all out, you might want to put in a temp switch to only have the 12V pump run when needed.
Here is the Tilton pump
