yeah I guess it all depends really the 46RE in my dad's 96 ram was trouble free from when he got it(100,000kms) to about 2000kms ago(it's got 278,000kms now) over about 5 years.
I went to a "good" tranny shop that builds drag race transmissions mostly I guess that shows me not to assume. Mine was rebuild last year and I've barely put 2000 kms on the truck since because they can't seem to get it right