Ray:

Good job - ya got it done.

Allow me to suggest something that might save you some time next gear oil change. I've used the following approach for 30 something years on domestic, asian, euro cars, SUVs, pick-ups, etc. It applies to rear wheel drive cars, but might also work on front-wheel.

Drain as you did, always removing the fill plug first. When it's time to refill, take a long(6-10 fts) stretch of large black rubber heater hose and insert the 2-3 in. plastic tip from a cheap funnel/hose setup that you can get at Wal-Mart, etc. Put a hose clamp around the end of the rubber hose where you insert the plastic tip and tighten it down good enough to keep it from falling off. You don't want this falling into your differential.

Now fish the hose over the top of a rear tire and downwards and towards the fill hole. Insert the plastic tip into the fill hole. Insert a funnel into the other end of the hose and start pouring in your gear oil. It's best to use a funnel with not too big an end so as to not seal up the end of the hose you're pouring into, otherwise, it can take awhile for the gear oil to drain through the hose and into the differential fill hole.