The auto tranny is a different variant of the 4l30e. If you ever drive a later model trooper, you'll feel the difference. They use a gradient down shift feature. IMO, this feature may be one of the reasons that new modesl seem to have more tranny failures.

Mark-95Trooper,fr LockRight,rr LSD,5spd,TeraLow,Indy tierods&QD sways,CO2, RS9000Xs,OME912&2.5"spacers,1"BL,ARB w/Warn M8000,OBT rear bumper&sliders. Pics indy4x