I have a 2003 chevy silverado 1500. i recently replaced the torque converter and when i put it all back together i could not get the truck to shift in to 4x4 high range, it does shift in to 4x4 low range just fine. this truck has the manual 4x4 shifter on the floor it is NOT puch button and does NOT have manual lockouts. Does anyone have any idea what could be wrong??? Thank you!