 Both rear axles failed. Around 60k miles. The replacement axles were different telling us the originals were defective. Big runaround from local dealers.Went to personal mechanic and paid $1,500 for new replacements. Dealer wanted $2,000+. The same mechanic just completed another replacement with the same year Frontier. This owner also had bad service. When I took it to the dealer we assumed a bearing and seal replacement. Then when they tore it apart they stalled telling us they did not have the parts although they told us they did when the appointment were made. Even smells bad. They told us that they would not offer any financial support because we used a private mechanic. I will get my financial support by "NEVER BUYING ANOTHER NISSIAN". I think I am even. GO TOYOTA.