Tire chop and rear bounce - Ford Powerstroke Diesel Forum
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Old 03-14-2014, 09:52 AM
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Tire chop and rear bounce

I was getting bad tire chop on the front tires so I rotated them to the back so they'd smooth out and had them balanced. I don't rotate my tires as often as I need to and the tires are BFG rugged terrains so that probably didn't help them at all. They felt like they were smoothing out and now all of a sudden any time I get around 40 mph accel, decel or cruising it feels like the rear end of the truck is goin to bounce out of the truck, ive literally seen things bouncing in the air in the be of the truck. Sometimes over 75 i feel a little vibration but maybe im just paranoid. I am going to get the tires changed this afternoon since these are pretty wore out anyways. I got 4 new shocks coming and I'm gonna get an alignment after I get the tires and shocks on. Is there anything else y'all can think of that might be causing this?
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Old 03-14-2014, 09:55 AM
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there's a lot of discussion on this here:
My Theory on the "Superduty Hop" and Possible fix.
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Old 03-14-2014, 12:07 PM
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I red through the thread some I didn't have enough time to read it all my ball joints are less than 2 years old and I pryed around on the tires and they all seemed good still. I have a gooseneck in the truck so I don't know about reinforcing the frame solving it. I would imagine the gooseneck hitch would help hold the frame together some. It's crazy that this would just all of a sudden started happening if it was some type of resonance or something.
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Old 03-14-2014, 12:15 PM
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If you read that thread, the talk is about bracing the bottom of the frame. If you look at the placement of most of the bracing, it is on the top of the frame rails (just like your gooseneck hitch).
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Old 03-14-2014, 12:21 PM
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Report back after you rotate...
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Old 03-14-2014, 02:32 PM
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I'm at the tire shop right now getting some brand new tires. I originally wanted the BFG all terrains but they were sold out and talked me into some Goodyear wranglers adventure all terrain. They were a couple bucks cheaper, longer warranty and he said if I wasn't happy with em I could bring em back within 30 days and they'll have the BFG all terrains and swap em out for the original price difference. I have the factory 16x7 wheels and had a 285/75 rugged terrain tire on it so he was thinking the chopping could have been exasperated by the tire being to wide for the rim. I went with a 265/75 so hopefully it'll be a smoother ride home.
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Old 03-15-2014, 03:22 AM
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The new tires seem like they got rid of 90% of the bounce. It is bearable now. I did notice my alignment is way off now and my steering feels really loose. I looked up how to tighten the steering gear box up but I'm wondering if the alignment shop will be able to take care of that for me
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Old 03-16-2014, 01:45 PM
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I replaced the sway bar end links today and it feels like it helped out some, definitely nice to not have to hear the pop every time I turn. I don't know if I bought a good set or not. They were driveworks brand from advance auto parts. It was less than $40 for both and they look identical to the moogs.
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