by DodgeFreak » Mon May 04, 2015 3:01 pm
If you have an auto already just splice your wires now. 12v to the middle wire, OD to the front wire. The lock up wire just run to an adjustable pressure switch. I would get a pressure gauge and hook it up to your gov port and with it up on jack stands or driving down the road find out where you would want lock up. (after od kicks in) and then take that pressure reading and preset the switch with air. Put that in the gov port and then run your other wire to ground.
If I was going to do it. I would get a 3 way switch and Run the lu wire to the normally open side and then ground. The other side of the switch I would run to the pressure switch and then to ground. Then you could manually control lock up or set it to be controlled with the pressure switch.
92 D350 Cab and Chassis. Auto stock, wiring gremlins. 330k miles
92 W250 Ext cab rotted completely out. Auto, pump maxed, 215 ppump nozzles, Denny T2 pin.
85 D350 single wheel, converted to cummins, getrag, turned up 2 turns and afc screw flush.