Join Date: Jun 2008
Location: Peterborough, ON
That will depend on a couple of things.
#1 does your truck have the override helper springs? (the extra 2 leafs that sit a couple of inches above the main spring pack). This was part of certain suspention options. If so, it will take a lot of 5th wheel to flatten out your 250/350.
#2 What will the pin weight be of the 5th wheel you want to tow? Even without helper springs, you should find anything under 2000lbs acceptable but that is entirely up to your comfort level for towing.
If help in the rear is needed, air bags do work great to stiffen things up back there, I would recommend the Firestone ride rites. There are 2 models for the SuperDuty, one bolts onto the outside of the frame rails but can interfere with certain hitches, the other mounts more inboard. I have used the outboard ones on a couple of my past trucks and had no problems when using the 5th wheel rail kit by Reese or Valley etc.
If you will be leaving from home with your unit & returning with it and unhooking at the end of the trip and not doing a lot of drivingbobtail while away, you should be able to get away without buying the compressor kit & guage as long as you have an airsource at home to inflate them before you leave. If you do add them, remember NEVER run them empty, always leave 5 or 10lbs air in them.
The other less expensive choice is the Timbren rubber spacers. I have not tried them but I have heard people really like them.
Good luck with your choices!