how to fix axle hop? 2018 PFA

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jsims006
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how to fix axle hop? 2018 PFA

Post by jsims006 » Mon Aug 05, 2019 10:49 am

I have a 2018 PW and I noticed that when I am going up 20-30 ft sand dunes, the truck has a real problem with bouncing and hopping. Anyone know what this is and how to fix it? Is it the axles hopping? The more I press the gas the worse it gets to where the truck bucks like a horse.
received_603397980185043.jpeg
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Colibri
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Re: how to fix axle hop? 2018 PFA

Post by Colibri » Mon Aug 05, 2019 11:13 am

First things first, what tire pressures are you running when doing this, and are you on stock rubber?
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Bill2014
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Re: how to fix axle hop? 2018 PFA

Post by Bill2014 » Mon Aug 05, 2019 1:56 pm

Others have added additional axle shocks which cuts the hop down significantly (but doesn't completely eliminate it in every scenario)
hop.jpeg
hop.jpeg (35.64 KiB) Viewed 173 times
Run with your rear axle locked if you're on sand like in your picture :wink: A locker bypass kit makes that easy for higher speeds in 2 or 4wd.

And - super loose sand may warrant very low tire pressures
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olyelr
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Re: how to fix axle hop? 2018 PFA

Post by olyelr » Mon Aug 05, 2019 4:09 pm

Yea, low tire pressure helps. As does larger tires with more sidewall. However, I dont think you can completely rid the truck of it... its just a trait of the suspension design and a super heavy truck. But yea, it sucks for sure. Annoying as hell. I have the same issue in the sand dunes as well as in snow.

I have never seen my truck do it where I can actually watch it happen (always in it driving lol), but I am pretty positive it is the axles hopping up and down, rather than the common “wrapping” or “twisting” that occurs with leaf spring setups.
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Low_Sky
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Re: how to fix axle hop? 2018 PFA

Post by Low_Sky » Tue Aug 06, 2019 10:27 am

Drop your tire pressure.


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