Thats funny! G22 does put the gear oil in the diff. I "kind of" originated filling the trans section through the G38 sensor, instead of using the "fill tube" as the fill tube has a lock on it and requires "pumping the fluid "upwards" from the bottom up, whereas filling through the G38 sensor hole you can use a regular trans funnel and just pour it in. Point is, if he put the trans fluid in the diff then your trans is empty and your diff is overfull!
See my website for correct fill procedure.



