Hi,

I've got a question that some of you can help me answer.

I have just bought a Mazda Tribute that was in an accident. I asked a tow truck to come and get it when that truck was on it's way with another car on it. He said he would take it to one location and then will come to tow my SUV. An hour later he came still with that car on it. When I asked how he is going to tow my SUV he said he would lift the front and two it that way. I said that Tribute is a 4 WD and so has to be on all four wheels and he said that my model is not a 4 WD. Since I just got it and I knew it was a cheaper model I thought that maybe he is right and didn't bother to look underneath the it to double check.

Anyway, we started and about two miles later I saw that the back wheels all of a sudden got blocked and I saw something like a cloud of dust or compressed air escaping somewhere from the back and then wheels were not spinning anymore and smoke started coming out. Since the tow truck couldn't stop right away he kept driving a little more and the wheels started spinning again but I think that's because something got broken in the either back differential or rear axel. I'm not that familiar what may happen in cases like that. Then he stopped, lowered my mazda, drove to a side road, took the other car off the top and put mine on all four wheels on the top and then he brought it to my garage. He saw me worrying that something must have broken and assured me that rear axel doesn't break and that everything is ok.

Now my question is - what could have gotten broken and maybe I should starting looking into taking apart and checking and another question - in this scenario is it possible that everything is still ok?

When looking from the back of the car underneath I can see some fresh oil on the rear differentiantial or whatever it's called - that thing in between the rear wheels in the middle.

Also how can I know check if the 4 wheel drive is working or it's only two wheel drive now?

Any advices are appreciated.

Thanks.