[V8] Drivetrain Fluids

[Gunter]

I'm new to the V8 club.........just acquired one with 140000........thought that I'd change all the drivetrain fluids and was successful with the rear diff and front diff.  Between the front diff and the rearmost 6mm drain for the auto trans (and just above the O2 sensor) is a 17mm plug that I opened thinking that it was another port for synthetic gear lube.........I was surprised when out of it flowed auto trans fluid.  There is another 6mm plug an inch or two away from that one that I didn't dare touch.

Is the front differential the only gear lube to change or are there other places to look at the front end of the car?

Thanks,

Gunter Cleveland