vibration under acceleration
Thread Starter
|
Junior User
Joined: Nov 2012
Posts: 80
Likes: 0
vibration under acceleration
My truck shakes under acceleration but as soon as I let off the pedal the vibration goes away. I checked my brakes but they are new, u-joints are also new. I had a shop rebuild m y front differential and drive shaft a few months ago. Could a bad tire do this? I h ave a 6 inch lift and 325 tires. Any help is appreciated.
is a BAAAD MAN
Joined: Apr 2005
Posts: 3,738
Likes: 5
From: Winston Salem NC
You could rotate the tires to see if the vibration moves, and take out the driveshaft and drive in 4x4 to eliminate rear driveshaft issues. Do you have a long bed with a center carrier bearing?
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
Is there any whining from under the truck... or in front? Is the vibration in the wheel or in your seat? Is it there if you let off the throttle at 65 MPH and hit the OD button? Is the vibration forward and backward, or side-to-side? What happens in a hard left turn or hard right turn? What made the vibration get worse?
Senior User
Joined: Mar 2005
Posts: 289
Likes: 0
From: Va. Beach, VA
I just had the same thing where I had vibration under load in the 35-45mph range, but if I let off the gas it went away. Plus a little clunk when putting in forward gear. Turned out to be the rear driveshaft universal joint at the rear differential was toast. Changed both ends of the shaft (short wheel base no carrier bearing) greased the splines under the bootie and no more noise or clunk.
BTW, there was no noticeable slop in the shaft from underneath by hand in neutral which threw me off a little at the beginning and started me thinking too complicated.
BTW, there was no noticeable slop in the shaft from underneath by hand in neutral which threw me off a little at the beginning and started me thinking too complicated.
Thread Starter
|
Junior User
Joined: Nov 2012
Posts: 80
Likes: 0
Honestly I dont even know whe the vibration is coming from. I feel it everywhere. When I make a hard turn it feels like is going to fall apart. Last summer I replace the driveshaft ujoints and the joke that comes from the differential. As soon as I let the pedal go everything gets smooth. I work all day today, but ill check the joint on the driveshaft tomorrow, maybe is loose? I hope so. Ill let you guys know what I find out
Thread Starter
|
Junior User
Joined: Nov 2012
Posts: 80
Likes: 0
Also it has a clunck when I put it in drive. Never did it before. How can I know if its the driveshaft.
Trending Topics
Lead Driver
Joined: Mar 2004
Posts: 5,372
Likes: 108
From: Northern Indiana
Clunk when you put it into drive is either driveshaft u joints or the spline on your drive shaft needs greased.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Logistics Pro
Joined: Apr 2010
Posts: 4,446
Likes: 26
From: Panama City, FL
Could the shop put the drive shaft in a different position as in they forgot to put a chalk mark on it so it goes back the way it came out and now its worn out the u-joints and under load it vibrates?
Senior User
Joined: Jan 2018
Posts: 130
Likes: 1
Same issue
I just had the same thing where I had vibration under load in the 35-45mph range, but if I let off the gas it went away. Plus a little clunk when putting in forward gear. Turned out to be the rear driveshaft universal joint at the rear differential was toast. Changed both ends of the shaft (short wheel base no carrier bearing) greased the splines under the bootie and no more noise or clunk.
BTW, there was no noticeable slop in the shaft from underneath by hand in neutral which threw me off a little at the beginning and started me thinking too complicated.
BTW, there was no noticeable slop in the shaft from underneath by hand in neutral which threw me off a little at the beginning and started me thinking too complicated.
Thanks for posting, I'll try this first.
Thread
Thread Starter
Forum
Replies
Last Post
robert chavis
1967 - 1972 F-100 & Larger F-Series Trucks
14
May 5, 2011 06:21 AM
blackkawi400
1973 - 1979 F-100 & Larger F-Series Trucks
12
Aug 13, 2010 09:32 AM