I recently got stuck in some mud and found my 4 wheel drive not to be engaging properly. Both the front and rear off side wheels were spinning but no rotation on the near side. I've used 4 wheel drive in the past with no problem. Could the issue lay in the transfer box?

92, surf, ln130, 3" body, 4" suspension, richmond lockers front and rear, and all the other refinements.

i can not seem to get the 4x4 to engage.
there is vacume where it is to be.
there is power to where it should be.
the add works (i tested it)
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Hi, first timer here and wondered if anybody could help.

I have bought a 93 hilux surf, it is my first one and shamefully I have just realised that the 4 wheel drive doesn't engage. This is stated on the v5 but the guy sold it to me as 4x4 and i didn't check.

Everything...