Donor axles needed for the swap. 05-16 front Dana 60 from F-250/F-350. Axle, radius arms, trac bar, coils, sway bar with links, steering from pit man down. 8x170 bolt pattern. 05-10 F-450 axle 10 lug can be used but will require rear 10 lug DRW axle.
Rear axle can be 99-16. The 05-16 axle is preferred for larger brakes. The 08-16 axle with leaf springs is best if using the Ford-RSDSW leaf spring swap kit. 2wd conversions should acquire the factory rear block from the 4wd.
Kit is designed as a 1-2" lift over a factory F-250 2"/F-350 1" using a 4400 lb spring rate coil. This spring is a ADD code. This is also dependent on your trucks wheel base configuration, a std cab does not weigh the same as a crew cab long bed.
The following is other various spring rates. -5310-AHD = 6000 -5310-AGD = 5600 -5310-AFD = 5200 -5310-AED = 4800 -5310-ADD = 4400 -5310-ACD = 4000
If you have an unknown front axle, the sway bar links will be the best way to determine what you have. They are as follows:
05-07, bushing on bottom-stud top.
08-10, bushing top and bottom
11-16 is stud top and bottom
Related to the 92-97 Complete 05+ Coil Spring Swap Kit (Stock Height)