Hi guys, i just finished to redo all my aux wiring on my jeep. I notice on the cluster that there an indicator " 4 wheel drive ". I know that cj dana 20 don't use it oem. But i like to know if i can make it fonctionnal? On the dana 20, there is two hole that can accept some king of ball switch. I have a spare t18 with the back up switch on it and i tried it on the dana 20. I'm only able to do 1.5 turn before it stop. So does any have any idea to make it work and where can i source the right swtich for the dana 20?