question

Hey all. So have a question about hooking up a locking rear. I had a rear end swapped out recently. Went from 20K to a 23K locking rear. So its a 2000 fld120 truck that was a twin screw. But someone chopped it down to a single axle at some point. So I dont know if maybe what I need could still be up in the frame tucked away or not but I am going to assume its not. So on the dash it does have the 3 air levers for 5th wheel, power divider and air bag dump valve. At present I only use the dump valve. So, my question is, if I have to go from scratch, how would this be hooked up? I know an air line goes to the solenoid on the side of the diff but there is also a 2 pin electrical connection. That I am not sure about. I could only assume that it might open or close a valve to allow air to lock it in or not. Any help would be appreciated.

 

Ok good deal. I did look and found the old connector up in the frame for it. Thanks for the help.