I have a 2014 FX4 with the 3.5L Ecoboost engine and I'm still trying to decide on a leveling kit or a lift kit. I did a lot of reading on both but still cannot decide.

I'm looking at the Auto Spring 2 1/2" with add a leaf leveling kit. The reason I'm looking at this kit is that I tow a 4 place Haul Mark enclosed snowmobile trailer and with the AAL kit it will give me more load capacity for towing.

Will this kit cause too much stress on front end parts wearing them out sooner then a lift kit would? I want to be able to add 34" - 35" tires using my stock 18" FX4 wheels. Any other issue that I should be concerned about?

Thank you in advance for helping.