3.9s are in my 32gtst, came out of an auto S13.
AFAIK the only 4WD ratios are 3.5 (34gtr), 4.08 (Stagea), 4.11 (32/33gtr), 4.36 (32GTS4, not sure what the 33GTS4 and 34GT4 used).
I wonder what the 4WD Cimas used? One would think with a v8 and an auto they would be pretty tall gears..