Hi guys. Thanks for letting me join

I have a 2007 hilux d4d love it. Never given me a days trouble. I would like to find out if someone can do a conversion from me from 2x4 to a 4x4 on it. Just that we go to Mozambique a bit more now it has made it a few times but dose get stuck when there is some traffic in the thick sand.
Many thanks for your help