Violent outofcontrol Shake

Reply Subscribe

Thread Tools

Search this Thread

Jun 24, 2009 | 09:34 AM

highrise4x4

Thread Starter

New User

Joined: Apr 2009

Posts: 6

Likes: 0

From: Florida

Violent outofcontrol Shake

hey guys i own a 1996 f150 5.0 4x4 5spd its lifted 6 inches with 35s its a short bed single tank now when im driving down the road its fine on the highway its fine now when i hit a series of bumps the whole truck shakes violently even after im on flat road it shakes so bad it knocks anything i have on the dash on to the floor im at a loss i have no clue what it could be..any help is appreciated thanks guys
Matt

Jun 24, 2009 | 11:08 AM

nstueve

Postmaster

Joined: Mar 2008

Posts: 2,703

Likes: 7

From: Des Moines, Iowa

Quote:

Originally Posted by highrise4x4

Check your drive shafts and make sure your ujoints are tight. Does it shake in 4x4 or after you leave 4x4? It could be anything in your drive line you'll need to narrow down where the shake is coming from before you can refine to what the problem actually is. does the shake come from the front or the rear? Are you hearing anything with the shaking>?

Jun 24, 2009 | 11:09 AM

17fordguy

Posting Guru

Joined: Aug 2007

Posts: 1,025

Likes: 1

From: Colorado Springs

check your shocks and springs somthing may have broken

Jun 24, 2009 | 12:19 PM

highrise4x4

Thread Starter

New User

Joined: Apr 2009

Posts: 6

Likes: 0

From: Florida

well its just when driving in normal 2wheel it feels like its the front end i just replace the ujoints so its not that but when it happens all the stuff flys off the dash

Jun 24, 2009 | 12:23 PM

alxsnmr

Fleet Mechanic

Joined: Mar 2005

Posts: 1,603

Likes: 1

From: St Louis

Have you checked your ball joints, tie rod ends, steering box play, wheel bearing, and all the suspension connections like the axle pivots for excess play?

Jun 24, 2009 | 01:44 PM

highrise4x4

Thread Starter

New User

Joined: Apr 2009

Posts: 6

Likes: 0

From: Florida

ive checked everything except the axle pivots how do i do that the rest checks out

Jun 24, 2009 | 01:53 PM

alxsnmr

Fleet Mechanic

Joined: Mar 2005

Posts: 1,603

Likes: 1

From: St Louis

Crawl under the truck and look for cracked rubber. Also have a helper move the wheel to see displacement on the rubber as the wheel turns.

Did you use a drop pitman arm or something else to change the tie rods geometry to account for the 6 inch lift?

May be ideal to ask the offroad forum guys for their opinions as well as to what is happening.