vibrating/ shaking

4x4Wire Trail Talk Forums: Jeep, Toyota, Mitsubishi, Pajero, Isuzu, Kia, 4WD, 4x4, SUV, Off-Road and OutdoorWire Forums

Print Thread

Rate Thread

vibrating/ shaking #915223 11/10/08 02:41 AM

Joined: Nov 2008

Posts: 3

wheelin

Need a Spot

My 89' extended cab toyota 4x4 has a vibration/shaking that begins as vehicle starts to reach speed or so...if i get up to 55mph, then push in the clutch to coast, the vibration stops, so i'm guessing its not the tires...

Any thoughts?

u-joints?...something in the clutch?

Re: vibrating/ shaking [Re: wheelin] #915224 11/10/08 02:55 AM

Joined: Jan 2000

Posts: 12,153

N. California. USA

4Crawler

Web Wheeler

Might be the rear drive shaft, it'll tip up under load, increasing the angle on the u-joint at the pinion flange. Pushing in the clutch lets it tip back down and possibly run smoother. Some tips on diagnosing the problem on the page below:
- http://www.4crawler.com/4x4/CheapTricks/Driveline-101.shtml#FixingProblems

r.c.brown@ieee.org
TruckEditor@tlca.org
Project: 4Crawler
4Crawler OffRoad - 4x4Wire discount code

Re: vibrating/ shaking [Re: 4Crawler] #915225 11/10/08 07:00 AM

Joined: Apr 2000

Posts: 4,230

Roseville, CA, Gateway to the ...

OOP'S

Roll Me Over

Does it have a two-piece rear D-shaft. If so it could be the center bearing has gone south.

David Fritzsche
1990 Ex-Cab V-6,5-speed, with a few mods
04.5 CTD Dodge 2500 Ram--Tow Rig
Roseville, CA

"Serenity through Sobriety"

Re: vibrating/ shaking [Re: wheelin] #915226 11/10/08 08:16 AM

Joined: Apr 2002

Posts: 3,568

Grass Valley, CA

Snowtoy

Roll Me Over

Do the vibrations come through the bottom of your seat?
If they do, this is also a a sign that the u-joints or center bearing are going south. Definitely something you don't want to put of checking, since it will likely let go at highway speeds when the u-joints/center bearing fails. Before you have the current drive line rebuilt, call a couple of your local drive line shops and see what they will charge to make you a 1pc, it is usually cheaper to have a 1pc made then to rebuild the 2pc oem ones.

More than tread lightly. Leave it like you were never there, nor anyone else.
'90 X-cab 4.88's 33 BFG AT's, rr ARB, Headers, Ignition upgrade, cold air induction.
'91 X-cab 5.29's 315's BFG MT's, rr ARB, custom bumper and flatbed

Moderated by 4Crawler, 4x4Wire, kewlynx

Hop To

4x4Wire Social: