What springs to run on Gen 1 with Gen 2 shock and bucket conversion?

[Speedhunter]

I've collected some spring rates and lengths for the Gen 1 and Gen 2.

Front Spring Rates: 2010 - 2014

• OEM 5.4L SuperCab: Approximately 560 lb/in per spring.
• OEM 6.2L SuperCab: Approximately 594 lb/in per spring.
• OEM 6.2L SuperCrew: Approximately 640 lb/in per spring.
• Eibach Has a linear spring rate of approximately 650 lb/in. Engineered to provide a front lift of approximately 2.5 to 3 inches over the factory ride height.

The factory front coil springs for the 2010–2014 Ford F-150 SVT Raptor have an uncompressed (free) length of approximately 17.5 inches.

Front Spring Rates: 2017 - 2018

• OEM About 533 lb/in across models.
• Eibach Pro-Lift Front Springs rated at 583 lb/in, designed to provide an additional 2.5 inches of lift.

The factory front coil springs for the 2017–2018 Ford F-150 Raptor have an uncompressed (free) length of approximately 19.38 inches.

 

[2012SCSVT]

I'm was using off the shelf eibach off road springs with a custom top hat.