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How do you know that you need them? I have more tongue weight than I'm used to but I'm not sure they are quite necessary. The truck is level but the ride is more "wavy" (gets pushed forward/back) on the highway. Nothing crazy but different than what I'm used to. No problems side-to-side. Pros/cons? Thanks so much.
airbags will just add to level and not be as mushy as springs alone. I installed some on my F350, did away with the OEM overload springs. Dont haul heavy except on occasion but when I do they bring the level back to the truck so its not light on the front end.
As long as your truck is mostly level you don't "need" bags. Like hank says they will help level the truck. They can improve the ride a bit I understand. I've gone back n forth on the topic and currently am in the "no bag" camp.
This helps- Thank you. I do feel like the front end is lighter in some situations. I do wonder if the 100 gallons of water going behind the crew can and the 50 gallons going in the Living Quarters of the trailer will make the bed sag too low. I wonder how low is too low for safety and strength... But anyway I appreciate this.
With our fifth wheel - we have very bad roads in Michigan and found that adding the air bags kept us from having a lot of bounce down the road. Wife happier.. do I need say more.
One way to tell is to park and unhook the trailer. With the headlights on, mark where they hit a wall or some other object. Hook up trailer and see where the lights are now aimed.
Actually you can do this just by measurement. On level ground measure to a fixed point on the truck the bottom of the bumper, the middle of the headlight etc. The with the trailer hooked up re-measure to the same point.
You can also measure sag at the wheel wells with and without your load. 1" is usually the recommended max by the hitch makers, before you add something to bring things back to level.
truck is level but the ride is more "wavy" (gets pushed forward/back) on the highway. Nothing crazy but different than what I'm used to. No problems side-to-side. Pros/cons? Thanks so much.
What you are describing, sounds like "chucking". Do a search on that.
To me, it sounds like what you need is a Weight Distributing Hitch, although maybe you have that and just didn't mention it.
Let's hear some details on that trailer and the hitch setup please.
I forgot to add my standard response to tow vehicle/trailer questions. You should visit the local CAT Scale to see how your TV/TT is loaded and if you are over weight. You can guess by looking at the published weight of your TT and the Max Tow numbers for your truck but to KNOW your weights a visit to the scale is in order. IMHO the "important" numbers are the Front/Rear GAWR (found on the sticker on the "B" pillar) and the actual axle weights (from the scale). In my experience you will be over the Rear GAWR well before you reach the Max Trailer weight.
To correctly weigh a bumper-pull TT it takes 3 passes over the scales (if you have a weight distributing hitch) and 2 passes if you pull a 5th wheel. Hitting the scales can be a bit intimidating the first time but it's like riding a bicycle, once you do it you wonder what the fuss was about.
The CAT Scale is your friend.
Good point about the CAT scales. It can take a bit of time, but for a guy like me, who still hasn't given up my childhood dream of being a trucker, it's actually kind of fun.
Plus, it's valuable information you can't really get easily any other way.