Mtntopper
SILVER Star
My 2008 has had Firestone airbags in the rear for about the last 4 years. I’ve used them to boost the rear an inch or so, and air them up when towing. This setup has been generally pretty good. Fast forward to 2 weeks ago, I towed my heavy ass Cummins FJ40 on a U-Haul trailer, and I pumped the airbags up to 60 PSI to combat the sag. About an hour into my four hour trip and... BOOM! Both bags blew. The truck handled safely, but I hit the bump stops on every expansion joint for the next three hours.
This weekend I replaced the rear springs and bags with OME 2721s. It took just over an hour, and is very straightforward. Hoping this setup does well for me. I don’t intend to tow as heavy as the FJ40 again anytime soon. Shown is before and after and the exploded airbags and old springs next to the new 2721s.
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