BDS-Suspension is currently offering a 4 link upgrade system for the 04-09 Ford F-250 and F-350 superdutys. This system works in combination with a 2"-6" lift. The 4 link upgrade dramatically improves handling and performance, especially when running a larger than factory tire. Let me know if you have any questions.

Buddy of mine has drivwline vibrations after installing your 4 inch kit- will this help.

Buddy of mine has drivwline vibrations after installing your 4 inch kit- will this help.

Hello,

More than likely he needs a carrier bearing drop, the 4 link arms help with the performance and reliability.