Riding on Marbles in the 2008 F-450 - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 28 (permalink) Old 05-29-2007, 04:26 AM Thread Starter
 
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Riding on Marbles in the 2008 F-450

Hey,

Has this happened to anyone?.....................I'm riding on the turnpike around 1am in the morning shortly after purchasing the F-450. All of a sudden the truck starts to skate. Its now like the rear end is coming around. I'm doing way to much driving with the steering wheel to keep the car in the middle of the road.

Is this the little steering box, tires, or what? The wabbling drive experience jumps up on you if you've never had this experience.

Ford tells me that the steering and driveline has around a 1000 mile break in period. Well, I'm pass that (1300 miles). I've tried letting a little air out of the front tires, but it still walks.

Any words of advice or comments are appreciated.
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post #2 of 28 (permalink) Old 05-29-2007, 05:13 AM
 
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Welcome to 12-14 plyville The 225 70 r 19.5's are extremely hard and FLAT which means every little groove in the road the truck will try to follow. Also if you have more of a steer type rear tires your rear will drift a bit. I didn't have it on the factory generals...but these ariels? have it bad, I thought the whole truck was going to spin around If you're not used to these types of tires all I have to say is Hope you bought this big a truck for a reason cause a 350 seems like a cadilac compared. It's going to take some getting used to...but when you have 90k on the tires and you still have tread left you'll be happy, until they hit you with that 2k bill.
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post #3 of 28 (permalink) Old 05-29-2007, 02:14 PM
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Originally Posted by I10HaulR
Welcome to 12-14 plyville The 225 70 r 19.5's are extremely hard and FLAT which means every little groove in the road the truck will try to follow. Also if you have more of a steer type rear tires your rear will drift a bit. I didn't have it on the factory generals...but these ariels? have it bad, I thought the whole truck was going to spin around If you're not used to these types of tires all I have to say is Hope you bought this big a truck for a reason cause a 350 seems like a cadilac compared. It's going to take some getting used to...but when you have 90k on the tires and you still have tread left you'll be happy, until they hit you with that 2k bill.

good info !! :Thumbup:
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post #4 of 28 (permalink) Old 05-30-2007, 03:03 AM Thread Starter
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I lowered the air pressure in the front tires to @ 90psi. Talked to a few diesel expert friends and am satisfied that it is the tires. After lowering the air pressure, the truck still behaves funky on rough terrain/padding. At high speed @ 75 mph itís not fun when the wobble wobbling here comes the rear end feel. I was concerned that this was something functional in the drive train of the truck.

Hopefully, it is just the tires. shrug:
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post #5 of 28 (permalink) Old 05-30-2007, 03:30 AM
 
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Quote:
Originally Posted by lpe387tt
I lowered the air pressure in the front tires to @ 90psi. Talked to a few diesel expert friends and am satisfied that it is the tires. After lowering the air pressure, the truck still behaves funky on rough terrain/padding. At high speed @ 75 mph itís not fun when the wobble wobbling here comes the rear end feel. I was concerned that this was something functional in the drive train of the truck.

Hopefully, it is just the tires. shrug:
Sorry It's just the tires nature Only real fix is to take rims to a machine shop and have them cut down to 19's and buy a SUV tire...that is if you don't need the weight rating
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post #6 of 28 (permalink) Old 05-30-2007, 02:00 PM Thread Starter
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What SUV tire can haul a gooseneck trailer pulling around 18,000 gcvw? Thanks in advance!
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post #7 of 28 (permalink) Old 05-30-2007, 06:59 PM
 
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There is a TSB for tire balancing for the F450. Also, check the door sticker for the tire pressure... they are supposed to be down around 75psi front and rear.
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post #8 of 28 (permalink) Old 05-30-2007, 08:30 PM
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Originally Posted by lpe387tt
What SUV tire can haul a gooseneck trailer pulling around 18,000 gcvw? Thanks in advance!
If thats all you needed why get the F450?
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post #9 of 28 (permalink) Old 05-31-2007, 05:53 AM Thread Starter
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If thats all you needed why get the F450?
I was just curious about the statement that was made. I've got what I need and what I wanted. I am just gathering information:thanks:
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post #10 of 28 (permalink) Old 05-31-2007, 02:40 PM
 
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You know after looking I couldn't find any 19" tires other than Michelin pilots Sorry for the misinformation. I know you can shave off .5 with the 22.5's and 24.5's If anyone can find 19" tires with E load range let me know.
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