np241 electrical problem?

[XHitman396]

so my buddy has a 94 (approx.) Z-71 with an np241 (so he says) and a nv4500 tranny. he says his four-wheel drive doesnt work because of some electrical problem. the truck is stock, and has the lever to shift into 4x4, not the button. isnt the 241 almost identical to the 208? i didnt think there was anything that important as far as electrical goes in there, all mechanical, am i wrong?? what could it be? can someone straighten this out for me?? much appreciated...

 

[HarryH3]

94 engages the front diff via a heated gas that expands and pushes a gear into place. The replacement part from GM is an electric motor that does the job much better.

 

[Thunder]

As Harry said. It is the electric accuator located on the front axle. Its not a xfer case problem.
It is a cylinder with a hex nut and wires going to it located on the front axle. Easy to replace. Just unscrew the old one and install new one $60-$90