On an average how long would it take to put on springs and what would you rate the difficulty of putting it on for the F

 

depends on your skill level, and if you have ever done the job before. It usually took me 4 hours to do my Audi's, however I have power tools, proper spring compressors, and race jacks. If you could get all 4 tires off the ground at once, and have all 4 shocks removed, 4 hours would be a max.

 

If you have the proper equipment, you can do it under an hour.