tranny filter replacement on 2004 Chevrolet Venture

how often should the automatic transmission filter on this be replaced.
And how often should the rear wheel bearings be repacked. This vehicle has 69,000 miles on it.

Asked by for the 2004 Chevrolet Venture
1 answer
check your owners manual for your maintenance schedule but I always change my trans fluid and filter every 30,000 on all my vehicles.