Please help, have been searching the net for hours. I have a SB C6 4x4(think it's out of a 89 F250)in a Jeep behind a 351w. I have an intermittent but increasingly more frequent problem where the shifter will not physically move to rev/park. Then I drive for a bit and it will be fine. Then next time it will not shift to L2/L1. Other then this the trans works fine.
