Death Wobble

[Stojanowski]

Come take my 2011 JK for a spin on some ****** roads... Then you will know what death wobble is

 

[griffinoil]

Door sticker means nothing except for factory tires. Tire pressure rating is tire specific. My 35” tires have a maximum pressure rating of 80 psi, and with a 35 psi load, the sidewalls were not handling the forces, resulting in a serious wobble under acceleration. With 50 psi, my wobble is non-existent.

 

[stakt]

I have a 2018 that is 100% stock except the wheels and tires (20" fuel wheels & 35" Toyo Open Country AT). At around 80MPH I get a wobble from side to side. It almost feels like its starting in the rear when the body truck is twisting from acceleration. Also, If I aggressively entering an on ramp it will happen as well. The ford dealer said there is nothing wrong and checked everything underneath. I tool the tech for a ride and demonstrated it to him. He said "because Raptors have so much power sometimes these things can happen."

CAn anyone help me understand whats happening? I read online something about wheels not being hub centric an causing this?

 

[stakt]

I have a 2018 Raptor with the Hennessey Velociraptor 600 package - 35” tires on 20” wheels, and I was experiencing front end wobble (scary situation) under hard acceleration, particularly when accelerating hard from 70 mph.
I‘ve had several front end and suspension shops try to figure out my issue, and the last one finally found the main culprit. My tire pressure was too low. I was running 35 psi, and am now running 50 psi. The wobble has gone away. Apparently the sidewalls of my 35” tires were not handling the stress under hard acceleration, and adding air pressure resolved the issue.

I have had my 18 Raptor for 9 months. I have a heavy foot and like to drive this toy. I have 37” BFG Mud Tires on 20” Fuel Rims with small lift. I think because my tires are bigger it’s a more obvious issue to notice. My tires hit the front of the rear wheel wells on heavy acceleration around a corner and I experience the above 80mph while making a pass listing like a boat or wobble with rear left seeming to be feeling the load due to axle twisting and all that power getting delivered. I can go over bridges and normal bumps and the truck suspension squats normal like it should. It’s an obvious and easy solution. Ford even addressed it with the Gen 3 Raptors….. Traction Bars will fix this issue. They attach to rear axle and frame not letting the axle twist. It’s not low PSI in the tires, leaking shocks, a ford thing or anything else. It’s really this simple. I hope this helps the future owners of Gen 2 Raptors.

 

[Billy Mc]

Come take my 2011 JK for a spin on some ****** roads... Then you will know what death wobble is

Yea, but a Jeep has a solid front axle.