Blinking S4 box

Its a 91 RT4WD Wagon.
S4 box is blinking, and it rides kinda high (RPM wise) on the freeway.
Would does that mean? I hit the button by the shifter and it doesn't do crap.. What's going on here.
S4 box is blinking, and it rides kinda high (RPM wise) on the freeway.
Would does that mean? I hit the button by the shifter and it doesn't do crap.. What's going on here.
Comments
but blinking S4..?
New tranny I suppose? Hard to find RT4WD auto trannys around here.