Axle Assembly problems of the 1998 Nissan Altima

While driving front side axle broke, causing loss of vehicle control. Vehicle has been checked by dealer.

I'm afraid to drive the speed limit in my state becuse a noise is coming from the right rear of the vehicle. After purchasing this vehicle I went to the dealer and told him to listen to the noise and he said it was normal(I have the paperwork to prove that I was there). I continued to drive the vehicle and now the noise is much more pronounced. I dont know what the problem is, I am a servicemember on a tight budget, I have to drive cross country on a regular basis, and I am afraid everytime I get into this car that the wheel is going to fall off. I am out of warrantee on this car so any repairs that the dealer will make I know will be costly. Am I supposed to wait until I kill myself in a freeway accident before Nissan will do anything about this? this is the first new car I have ever owned, shouldn't there be some type of policy that dealers need to inform their costumers about the warrantee on the vehicles? I didnt know that I could have taken it to any other dealer accross the country and have them look at it. I do now. All I know is that I will never purchase another Nissan again. I'll stick to beefing up an old chevy from now on.