IMO jeep np231 crawlbox to a a fliped dana 300 twinstick from a jeep cj
np231-2.72:1,
d300 is around 2:1 (google it)
1st gear is around 3.5:1 I would guess
<img src="/forums/images/graemlins/kewl.gif" alt="" />

You'll want axle gears more than 5.xx for sure, like 5.38s


'88 Raider, 33" Maxxis, 2" body lift, 10K winch