wsterling wrote:
I meant shocks, not springs, dang phone... errrrr... so how can I tell if the bag needs to be replaced, just fill it until its full and if it's leaking air then it needs to needs to be replaced? As for the tires, they were replaced in 2012, so they only have about 6K on them. Thanks so far for all the advice everyone!
Mileage MEANS NOTHING> IN FACT old tires with low miles are worse than newer with high mileage.
If the tires have been uncovered baking in the Arizona sun the may be nearing end of life. It has to do with the compounds that preserve them being leached out by sunlight. Daily driving redistributes the compounds sitting lets them leach. That being said I would replace the 2 fronts and see what the spare was like then use one of the fronts as a spare. Nothing worse than a blowout of a front tire at 65-70 MPH
