I'm guessing that this hasn't been done on mine in a long time.

Is the gear lube liquid, or is it more like bearing grease?

Sounds like the way to go is drain, refill w/new, drive for (???) then drain/refill.

How hard is this to do? What's the trick to refilling it after draining?

Thanks!
LT

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83 SD 143 K miles
93 Grand Caravan 130K miles
92 Buick Regal (winter car)