4-Low 2wd kit available for 2013 4X4s??

[Gonzo 1066]

WAY WAY back when my 2001 was a new truck BD had a 2WD Low kit so you could use low range on the transfer case but disengagine the front axle for trailer backing. Does anyone offer this for the 2013s with the freespin front axle?

 

[CKelley1]

there are three that I know of, I use the dynatrac
#ad

#ad

 

[cerberusiam]

WAY WAY back when my 2001 was a new truck BD had a 2WD Low kit so you could use low range on the transfer case but disengagine the front axle for trailer backing.

You need to check and see if they have a disconnect on the front axle or if it solid and spins all the time. Check your front drive shaft as you roll it in the driveway, if the drive shaft turns it is a solid axle. At that point you need a free spin kit, not a 2WD low kit.

 

[Joseph Donnelly]

2013 3500s have an axle disconnect but I haven't inspected one closely to see whether a simple vacuum valve would work on it.

 

[Gonzo 1066]

The axle appears to have a electric actuator. I will try to probe the wires to see if it engages with or without power, If it works as I suspect a simple toggle switch should be able to defeat the 4x4 in low range.

 

[cerberusiam]

Doubt it is vacuum as there is no vacuum source left on these trucks. An electrical solenoid makes much more sense. The problem with it will be defeating the built in monitoring of the circuit. It is a good bet the circuit is being monitored for opens and shorts so one won't be able to just cut the sense wire and run it thru a switch. The relay or switching mechanism will have to supply continuity to the sense circuit or you will likely get codes and maybe a limp mode. The sense circuit will usually want a very low amperage return signal to validate the solenoid has engaged, is not open, is not shorted, usually resistance in he 5-100 ohm range is the most common. Care has to be taken to NOT allow any high amperage back on the sense circuit or one will be replacing TIPM, ECU, or whatever incarnation of electronic controller is there. A 5 volt reference signal will usually suffice if one can be found to tap into.