I don't see any argument for a 98/99 over a 2000+, or an argument for a 2000-2002 over a 2003+
Just my personal opinion, the ATRAC in 2000+ is worth buying over a 2- pinion front diff 98/99 even with a rear locker, and then an 03+ with the 5 speed is always better than anything before it. Having owned both, to me, the 5 speed makes the truck feel so much more modern driving and smoother than the 4 speeds.
The 06/07, again just my opinion, isn't worth the premium over an 03-05.
When I was looking into what year I wanted, this is the line of thinking I took. I own an 03 and personally think it's about the best deal you can get for a 100 series. You get the 5 speed transmission + non-interference engine so if you snap a timing belt (which shouldn't happen of course) you're good. It also is much cheaper than the 06/07 too.
I’ve had a rear locker hundy and I’ve had a triple locked 80 series. I would rather have ATRAC than either of those.
I'm always envious of lockers but I've had a good experience with atrac. What makes atrac stand out over lockers to you though?
100% lolOver the years, there seems to be a number of people on this forum, that build a 100 series, lose interest, sell, build something else, lose interest, sell, build another 100, lose interest, sell (rinse & repeat).