Re: Tracker Math
Once you actually wheel it you'll find the low range gearing is way too high now.
The dana 300 is only slightly lower than the Tracker t-case. Tracker t-case is 2.268 vs. D-300 is 2.60. Not much ratio change there.
That will give you a crawl ratio around 40. The higher power of the 4.3 will help, but 4.3's aren't noted for low end torque.
The auto will help some because of the torque converter - especially if you opt for a high stall speed converter - like 2000 or so to keep the R's in the power band.
The 700r4 converter you can add a switch in the lock-up converter for downhilling - nice!
But you'll still want to install the Terra-low 4.0 in the D-300 to make it all work together.
It'll be heavy, mostly front heavy, and by the time you add lockers to keep the power on the ground it'll be lots of $$$ all told. You'll love it once it's finished.
Mine is still the stock motor with a crawl ratio of 80 - I'd rather have it around 120. Most of the time it doesn't need to be that low, but it would sure help sometimes.
He He - I get laughed at all the time by the 3 Jeep clubs I run with "Rice Burner" etc. I love it!!! At every run, and that's nearly every weekend, someone teases me. The others that know me keep quiet - they've been there before.
Than when it gets a little tough I go right on through when they have trouble.
It easily outperforms by new highly modified Rubicon Jeep.
Keep us informed of how the project goes.