2WD Low range

[woody80z28]

I can't find it, but I read somewhere that you can put a rocker switch on the front diff actuator wire and therefore run low range in 2WD. Does anyone know exactly which wire that is or have a tutorial?

With my 5spd swap it seems like 2wd low would be really handy in case I need to really crawl up a hill or something.

 

[Crash]

you need this... http://www.4x4posi-lok.com/app_chevy-k.html

 

[woody80z28]

Thanks, but not interested in the posi-lok. I converted to the electronic actuator last year, and I know there is one wire you can put a rocker switch on to toggle on/off while in low range.

 

[woody80z28]

Is it the brown wire? Does anybody know?

 

[Blue975speed]

if theres just 2 wires going to it, you could do it with either or, that way your either giving it a hot or giving it a ground. Or well a + or a - beings its dc. if you have a voltage tester then get someone to pull the tcase lever and while you probe the wires. which ever one gives you 12 volts between it and ground is the one.

 

[woody80z28]

Never updated this, but my 2LO is now functional. There are 2 (manual) or 3 (auto) wires going to the tcase switch. Pin A is always hot with the ignition on (brown wire in my case), Pin B is only hot when 4HI or 4LO is selected (green wire for me) and Pin C is hot when in 4LO (blue). I put a rocker switch in the Pin B circuit and I can switch the front diff on/off and the 4WD light goes on/off with it. Leave the switch on and it functions just like factory. Switch it off and you can shift to low range without 4WD.

 

[TruckinAin4Sissies]

Well ain't you cool! I outta do this.

 

[woody80z28]

I got that 1-ton tcase working too...just had to splice that 1-wire "clutch coil" into that same Pin B wire.

 

[TruckinAin4Sissies]

I'm glad 'cause that tripped me out lol