shocks

I want my 2015 Navigator (base, 4wd, 101k miles), to have firmer suspension, more truck-like for towing purposes (and personal preference). It currently has the original airbags, and I'm not leaking air. Can anyone tell me if the rubber airbags can soften over time, or expected life of the...

Even though my Air suspension system is currently fine, I've decided to do away with it and sell the whole system while of course replacing it with coil springs. I have noticed there are more than a few vari v. const discussions all over the web but I wanted to see if anyone here has done this...

I've recently learned that my shocks are shot on my 98 Town Car with the rears being especially bad, I've heard that stock Motorcraft are the best way to go for the best ride, any truth to that, or would I be just as well off with Monroe's, or Gabriel's? Any advice would be greatly appreciated...