The answer is caster. Can happen on newer trucks too. If caster angle is too positive, death wobble will happen. Anything less than 4 degrees of negative caster will increase chances of death wobble. Worn out front end bushings often lead to caster becoming more positive.
Yes caster is the answer. I believe you have your negative and positive just backwards. ( The diagram in the video shows it) You want at least 4* positive,5 is better , with use of aftermarket radius arms (adjustable) you can run 10- 12* positive cast and you will never ever have death wobble.
Dodge and Jeep are the worst for death wobble. Modern GM trucks will never have it because they run a torsion bar and IFS frontend. The manufacturers cheapened out by switching from a kingpin solid axle with leaf springs to a balljoint solid axle with coil springs. A kingpin solid axle with leaf springs never had that problem because the whole frontend steering and suspension was so overbuilt.
And now youve said the real reason the death wobble happens. The center spring is actually shock loading the center of the axle and deflecting causing the death wobble. The bushings in the steering components absorb this shock and lead to premature wear. This forces the wobble to present itself in the tires. Thus causing the death wobble.
@@calebjackson4708, leaf spring design was the way to go. Yes the coil spring provides a smoother ride but it’s a truck, not a cadillac. People have become too soft nowadays. A leaf spring truck rides surprisingly smooth if the frontend is maintained correctly and every 150K or so you replace the leaf springs themselves because over time they will lay flat and the bushings will wear out.
Regarding the death wobble, the parts you first check to determine the cause of the wobble, what replacement parts do you recommend? Buy Ford parts ? Moog ? Another brand? Just bought a 2014 F350 crew cab 4wd, 6.2l gas engine. Has a little wobble in the front end . Thanks, Scott
My truck needs everything in the front end i have a 2nd gen but it dont wobble it has just a little shimmy to it but u cant really tell idk how it doesnt have the death wobble but thats the best i can explain it
I remember having an 1989 f350 work truck and between 2 dealerships they replaced everything on the front end, I remember the bearings where 1200 but nothing changed it. Donated it to a farm with a nearly new engine...
You love in San Antonio just buy all front end and take it across the border to Nuevo Laredo labor would be about $125 for all bars and bushings , alignment would be $15 bucks for a 4 dimention machine alignment cheaper than $6 grand
i have an 11' F450 6.7 and it is doing it right after an alighment shop installed all the things i wanted on it, new shocks i brought in, track bar i brought in too, etc. but shakes at like over 40mph. gotta fix this shii lol
Dealing with death wobble is hard . Like the mechanic said target the loose parts first . But the hole design is prone to death wobble. Even with a tight suspension. On a motorcycle it called tank slapper. And there is nothing wrong with any part . Under the right circumstances it will happen is a frequency thing . That's whay you can drive the truck for 10 years and never have death wobble or have it one time over ten years . The street the bump the radius of the curve .it such a bigger topic then . Loose bad parts . Rake camber caster even tires
Firts gen dodge 12ft stake truck i drove at a fence company had a bad death wobble. So bad it wouldn't care what speed you're going it just showed up out of nowhere.
He had good information and seemed honest
Yeah too bad he didn't listen to the guy when he spoke and kept making him repeat himself
@@PocketSand1776 bro it’s a yt video im sure there reaction off camera was different😂
The answer is caster. Can happen on newer trucks too. If caster angle is too positive, death wobble will happen. Anything less than 4 degrees of negative caster will increase chances of death wobble.
Worn out front end bushings often lead to caster becoming more positive.
exactly!
Yes caster is the answer. I believe you have your negative and positive just backwards. ( The diagram in the video shows it) You want at least 4* positive,5 is better , with use of aftermarket radius arms (adjustable) you can run 10- 12* positive cast and you will never ever have death wobble.
What site do you recommend that sells all the front end bushings?
Bro, I was just watching the video and see the truck driving through my apartment complex. That is crazy. Small world.
Dodge and Jeep are the worst for death wobble. Modern GM trucks will never have it because they run a torsion bar and IFS frontend. The manufacturers cheapened out by switching from a kingpin solid axle with leaf springs to a balljoint solid axle with coil springs. A kingpin solid axle with leaf springs never had that problem because the whole frontend steering and suspension was so overbuilt.
And now youve said the real reason the death wobble happens. The center spring is actually shock loading the center of the axle and deflecting causing the death wobble. The bushings in the steering components absorb this shock and lead to premature wear. This forces the wobble to present itself in the tires. Thus causing the death wobble.
@@calebjackson4708, leaf spring design was the way to go. Yes the coil spring provides a smoother ride but it’s a truck, not a cadillac. People have become too soft nowadays. A leaf spring truck rides surprisingly smooth if the frontend is maintained correctly and every 150K or so you replace the leaf springs themselves because over time they will lay flat and the bushings will wear out.
Regarding the death wobble, the parts you first check to determine the cause of the wobble, what replacement parts do you recommend? Buy Ford parts ? Moog ? Another brand? Just bought a 2014 F350 crew cab 4wd, 6.2l gas engine. Has a little wobble in the front end .
Thanks, Scott
Lack of caster, add 2-3 degrees.
My truck needs everything in the front end i have a 2nd gen but it dont wobble it has just a little shimmy to it but u cant really tell idk how it doesnt have the death wobble but thats the best i can explain it
Add stabilizer shocks I got a 16 F350 that had the death wobble added stabilizer shocks it went away.
I remember having an 1989 f350 work truck and between 2 dealerships they replaced everything on the front end, I remember the bearings where 1200 but nothing changed it. Donated it to a farm with a nearly new engine...
You love in San Antonio just buy all front end and take it across the border to Nuevo Laredo labor would be about $125 for all bars and bushings , alignment would be $15 bucks for a 4 dimention machine alignment cheaper than $6 grand
I bought the “Trac-inator” and have not had a death wobble since.
i have an 11' F450 6.7 and it is doing it right after an alighment shop installed all the things i wanted on it, new shocks i brought in, track bar i brought in too, etc. but shakes at like over 40mph. gotta fix this shii lol
Take it to them they got my buddy right
Dealing with death wobble is hard . Like the mechanic said target the loose parts first . But the hole design is prone to death wobble. Even with a tight suspension. On a motorcycle it called tank slapper. And there is nothing wrong with any part . Under the right circumstances it will happen is a frequency thing . That's whay you can drive the truck for 10 years and never have death wobble or have it one time over ten years . The street the bump the radius of the curve .it such a bigger topic then . Loose bad parts . Rake camber caster even tires
Firts gen dodge 12ft stake truck i drove at a fence company had a bad death wobble. So bad it wouldn't care what speed you're going it just showed up out of nowhere.
oh shit in my home town with my buddy Brian! He knows his stuff. Hit him up if your in Bryan / College Station Texas and need a repair!
Asher Automotive in Bryan, Texas. This mechanic is a wonderful representative of this shop.
Put a duel steering stabilizer on it. That will knock out about 90% of it
Look on UA-cam the new ones still do it ...
It’s bad universals in the front axle
No
WHEN R U DELETEING THE TRUCK
My jeep doing it too! It’s a 2021 with 40,000 miles smh
Must be a high mileage truck for suspension on Fords will last 200+ miles mine has 230k still fine
It's also depends on the type of roads u drive 2 dirt roads take a beating on the stuff n if it's lifted 2 tht a big deal 2
Only reason I hate fords is the ptsd my old f-250 gave me
Anybody who's taken a basic physics class should understand oscillation. you Damp it out to solve it.
Only the Chevy/GMC trucks don't get that.
Resonance
It's a Ford. Case solved. And probably poor maintenance.
It affects any front straight axle vehicle
@boraxguy8302 not true at all. I have an 03 f250 with 160k miles on it solid front axle on leaf springs and never once I had the death wobble.
Jeeps are just as bad solid axle
People love to hate. Ford over dodge, from the mechanic I heard it.