Call Source. I just had them installed on our 08 Endeavor with 8 air bags. No ping tank or whatever that is as far as I know.
The valves are nice and put some extra control in place but I would install sway bars first for the best improvement. Had a four wheel alignment and the valves installed last week at Brazels. Had a Dyno test too.
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Certified Senior Electronic Technician, Telecommunications Engineer, Telecommunications repair Service Center Owner, Original owner HR 2008
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