Richard, 4wd locker is meant for going straight and not making any type of sharp turns. If your going to be making a turn can use 4wd but should not be in lock which is all 4 wheels at the same time. This causes the drivetrain to bind and skip through the turn.
You should be ok if you only did it a couple times, but keep that in mind for the future please so you don't cause damage.
let me know if you need anything else.
Hi....thank you for your reply and I understand what you are saying. The noise though happened when I then moved forward not while I was going backwards? I presume if some harm had been done the 4X4 light would come on?
Should not matter which direction your going, will make noise if your turning in LOCK
so avoid turning to sharp in LOCK, regular 4wd would be fine
as long as there is no excessive noise when driving normally now and no lights on then I would not be concerned at all
Jake....Thank you. I appreciate your time. I love my car and thought I had broken it. Richard.
Your welcome Richard, I think all will be ok.
if you run into future problems though be sure to come back and let me know.