1997-2026 E-450 Superduty Special Design Helper Spring Kit (9640) perfomance-turbo FK Race Heim Frame Connection

FK Race Heim Frame Connection

The factory plug has no magnet and provides no protection

Vehicle-specific upper mount includes a composite bushing that isolates noise and vibration

Front high strength progressive rate coil springs for a great ride on any terrain

1997-2026 E-450 Superduty Special Design Helper Spring Kit (9640) perfomance-turbo FK Race Heim Frame ConnectionThe Hellwig LP 35 Helper Spring set the standard for all other aftermarket helper springs. Featuring a Fulltime Spring Rate design it is the workhorse of the Hellwig Spring line. This is ideal for fleet applications or vehicles that consistently carry a heavy load day in and day out. Features 1 ton applications Easy Installation Install Kit Required (see Load Pro installation kits) Level Load Capacity up to 3500lbs Tunable Specifications Color Finish: