Thinking about putting a set of air helper springs in the rear of m4 04 f150, want to eventually get a sled deck and haul around 2 snowmobiles. Would the truck handle it with out frying the tranny/engine? Also whats the best type/band of bags to get? thanks!

 

The engine and tranny will be just fine.

I have Firestone Ride-Rite bags under my truck, they are GREAT!! The install was simple and straight forward, and the way the truck handles with a load on is just so nice. Firestone makes 90%, or more, of the airbags under 18 wheelers, dump trucks, ect.

Here are a couple pictures that show the difference that airbags make. This is with about 2500 lbs.
No air

With 65 psi

 

oh wow, thanks!