91,, 2500 with 4L80 (I think) Is there an electronic controller for the 4spd auto??? 4spd would be nice with 4.11 or 3.73s???
91,, 2500 with 4L80 (I think) Is there an electronic controller for the 4spd auto??? 4spd would be nice with 4.11 or 3.73s???