You should be in 4wd before you get stuck. When you are stuck, at least one wheel will be spinning, so that will allow everything to line up and engage, without the vehicle going anywhere.
So you mean to tell me you've NEVER in your life accidentally got stuck in 2wd and needed 4wd to get out... you've never driven on grass or dirt that was muddier than you thought, never skidded off the road in a downpour and got stuck.
Yes, I know how 4wd systems work and how/when to use them. Always go by the "better safe than sorry" method. My post was more joking and satirical than serious. Funny story- Just had to loan my dad my truck while I was away on a trip. It snowed. Needless to say I got 3 calls from him trying to figure out how to get 4wd to engage. It's certainly an acquired touch.
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