Truck wonders - Ford Powerstroke Diesel Forum
Suspension & Steering Discuss OEM & aftermarket suspension, lifts, air ride suspension, shocks, steering components, etc.

 
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post #1 of 9 Old 07-29-2013, 07:36 PM Thread Starter
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Truck wonders

I have a 2003 F450 crew cab dually with a aluminum flatbed and carrying a 990 Arctic Fox slide in camper. 6.0 powerstroke automatic 225 70 R19.5 tires. All stock. The problem is the truck wonders all over the road, I installed new tires and no help. I just bought this rig and am at loss as what to do. It has a straight axle on the front and the king pins and tie rods are all tight. The camper weighs around 4500 lbs installed but this is a 450 so should handle it. A friend has one just a little lighter in a 350 with no problems. Any help please, this is my first Ford I have always had GMC 3500.
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post #2 of 9 Old 07-30-2013, 03:37 AM
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Did you have the tires balanced when installed? A lot of shops will not balance the rear tires because they claim that duallys don't need it.

Check the track bar and the steering box. Slide under the truck with some one in the truck turning the wheel back and forth with the engine off. Look for anything that's loose.

Also what kind of tires? On my 550 it handles like crap when I have a more aggressive tire installed rather than a summer/highway tread. It gets a little better after about 10k miles but never gets perfect with an open shoulder drive tire.


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2001 F350 SRW CC 4WD LB
ZF6 w/ Southbend, 220k, DIY Intake, WW,NonEBPV Pedestal, CCV Mod, Gauges (Boost, Pyro), 2in Leveling Kit, 4" Straight MBRP, AIH Delete, 2-12" Kicker Comp's, Pioneer Amps
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post #3 of 9 Old 07-30-2013, 04:13 AM
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Tie end, passenger side was toast on my truck at about 50k miles. Check all joints up front as suggested above


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post #4 of 9 Old 07-30-2013, 06:15 AM Thread Starter
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I have highway tread tires on all the way around. I will get under truck and have wife move steering wheel. Jacked it up and checked the tie rods and King pins are in good shape no play at all. Going down the road at 60 mph acts like the wind is just blowing it around, had a car one time with bad shocks and it would act like wanted to fishtail all the time, but a 450 suspension is stiff enough not to do that. I have had several folks tell me that a Ford has a wonder to it you just have to get use to it. This is my First Ford so don't have any thing to compare it to. I had a '01 GMC 3500 CC DW before this and pulled a 40 foot Fuzion toyhauler with no problems
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post #5 of 9 Old 07-30-2013, 06:19 AM
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my 02 f250 wondered bad when the wheel bearings where going bad, just jack the truck up and grab it at the 6/12 and 3/9 o clock position and see if it the tire moves on both sides

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post #6 of 9 Old 07-30-2013, 06:49 AM
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You need to sit down with it and figure out what it is wondering about. It may have seen a sporty European model that it wants to spend time with.

BTW.

Wonder is a feeling of surprise mingled with admiration, caused by something beautiful, unexpected, unfamiliar, or inexplicable.

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post #7 of 9 Old 07-30-2013, 06:55 AM Thread Starter
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Yea that is the feeling I get driving down the road. Surprise, unexpected and unfamiliar, I don't know about the sporty European model but when at home I park it next to my Vette. Guess we will just have to have a long talk.
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post #8 of 9 Old 08-19-2013, 06:04 PM
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May or may not be applicable to the OP. My '03 250 wandered all over the road. Figured it was the tires. My dad had mentioned adjusting the steering box. I checked every component on the front end. Tie rods, pitman arm (who's nut was loose), hubs, everything. Still wandered. Had to move the steering wheel back & forth about 2" as measured at the top to keep it in between the mustard and mayo. So I tried dad's suggestion. Loosen the lock nut and turn the allen screw clockwise about 1/4 turn, tighten and then test. Working great now. Still got a little more to go. He was saying that if you get it too tight, the steering wheel doesn't want to return to "neutral" during a turn (which "could" be an issue...). The difference between leaving it as it was, and right now is night and day. Steering still returns just fine. The freeplay in the steering wheel is "almost" totally gone. Down to about 1/4". I also decided to adjust the John Deere mower (also has a similar steering gear adjustment) and that thing tightened up perfectly.

Might be worth looking into, however, check the tie rods, hubs bearings, and pitman arm first as they are the most common issue.
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post #9 of 9 Old 08-19-2013, 06:10 PM
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Judging from the pic, not enough weight on the front end. Had a chassis cab work truck with a flat bed used to haul 1000 gallon tanks of chemical, it did the same thing when loaded.

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