I know that I have a 9" rear end on my 1979 F150 4x4, gear ration 3:50 and it is trac-lok. I know this because I had the rear end rebuilt and replaced all the internal parts, clutch rings ect.

How do I know if the front axle a Danna 44 is also trac-lok ? I think the gear ratio is 3:54.

 

Jack up the front and lock the hubs, turn one of the wheels. If the front wheels turn the same direction = a traction device. If they turn in opposite direction from each other = no traction device