stutaeng
I'm Awesome
A 3500 would never have had 3:42s, a SRW would have come standard with 4:10, with 4:56 optional.
I thought the same thing, but a member here stated that the early GMT 400s could be found with 3.42 and 3.73s as well, and in fact, the GM Heritage literally does show this.
But you correct on the '97-'00 models.