I keep getting different stories from Pep Boys. Now they say the sensors don't need replacing (good, when I called Nissan, they said they are $300.00+ each and shouldn't need replacing, unless broken somehow). However, instead of the Monroe sensa trac shocks, Pep Boys said they had to special order air shocks from Nissan :confused: . I was told I'd get the truck back today (4 days late!) Hope I get it back in good working order. pssd