There are a couple constants for gearing in the RBV world, most everything else is random. 4 cylinder 4x4s will have 4.10s and so will 2.9 auto 4x4 extended cabs. In B2s the 2.9 auto 4x4 got either 4.10 and supposedly 3.73 however I've only seen 4.10s and all the 4.10s had an LS as well. D35 B2s will not have 3.45 because the D35 does not have 3.45 gears, 5 speeds with D35s will most likely be 3.73s and again, 4.10s for the auto. Most manual B2s seem to have gotten 3.45s.