transfer case interlock w/trans lever

[Bruski]

I finally got my neighbor to part with his '87 4WD Laredo.

Plenty of Michigan rust but nice Meyers snow plow. You'all know the story

"a little of lady just used it to plow her way to church on Sunday".

So it got to the point where transfer case shifter wouldn't come up. So the

local trans shop disconnected the mechanical linkage, put in in 4WD in winter

and 2WD as snow melt. This was done underneath. So my question is: why

can't I get the transfer case handle to move from 2W high to 4W hig? It seems like

there is an interlock to the auto trans shifter (as there should be to allow shifting

in a forward gear). Mechanical linkage is disconnected underneath, I can put key

on to move trans shifter lever to a drive selection but transfer case handle will not

move to 4W high. I can drive the vehicle forward but still can get the handle to move.

I've ruled out rust binder with WD40 , etc. How does the interlock unlock the transfer

case handle? What is my missing piece to this puzzle

Bruski 3/26/PM

[mvusse]

There is no interlock. If the transfer case shift handle won't move, either something is jamming it, it rusted in place, or something is broke.

 

To allow shifting from 2 high to 4 high on the fly while moving is handled by a syncro inside the transfer case.

[Boots]

I had to use a big screw driver for leverage when I shifted mine by hand. Maybe you aren't pushing hard enough?