LC100 Vibration at 40kph - Anyone else had this?

It could be the wheel alignment or wheel balance.

Kev

kktdw,
I had a very similar vibe with my 80 series 2 weeks ago however it was at hiwghway speed. Ii ended up being a loose wheel bearing which was not evident until the splined outer was removed exposing the bearing adjustment nut which was loose. When the splined outer with the 6 cone washers was in it held it tight enough to seem like the wheel bearing was adjusted properly. But when I removed it there was play in the bearing. I put a new locking washer in and tightened the locknut to specified tourque and the vibe is gone.
Mind you I spent every night under the dammed thing checking tailshaft splines, uni joints and suspension bushes. The thing that clicked for me was when I removed the front shaft and drove it as a RWD it seemed far better when driving in a straight line however when slightly turning left or right it would wobble and then vibrate.
In the end, it took me 10 minutes to fix the silly thing.

Make sure you check all 4 wheel bearings

hope this helps

Rob

Thanks Rob

Have been over the two front bearings a dozen times - preloaded to spec and recently re-done by Toyota when they did brake disc bolt recall.

However, the rears haven't been checked for a long time - I will do these and see how things go - I have a slight clunk down the rear from takeoff - could be the bearings!

Thanks for your help

Ken

how high is it lifted?

Hi,
Mine makes a knock, knock noise between 40kph and 75kph like a tooth is missing on the crownwheel. 3 seperate mechanics (good ones) have checked the vehicle and none can figure out what it is. driven without front shaft, still there, driven without rear shaft, still there. Diff lock engaged can't hear it but dirt more noisy anway. New tyres still there. Done all bearings brakes etc ..still there.
Can't hear it with the windows down only when they are up.

Ken it sounds like the slip yolk on one of your (or both) shafts. Is it worse when going down a hill only giving it enough throttle to stop it de-cellerating. If so slip yolks. Give them a wiggle when parked and no load on them. If it vibrates under load front uni on rear shaft, if vibrates on full decelleration, then rear uni on rear shaft.
Regards
Tour Boy (Dave)

hi Ken
I have 2003 100 series live axle I have same problem but mine happens at higher speeds . I have had no success in solving this problem it has been looked at by driveline services to see if my are ok and they were fine. The noise came after I put a lift in , that has since been removed but problem is still there. When I put my mud tyres on the noise is gone but that could be the tyres over powering the noise. This problem is annoying the hell out of me as well. People have said to just leave it and see what happens but my lc only has 41000 klms on and if same thing goes bang it could cost allot of money to repair. If I solve it I will let you know.GOOD LUCK

Disk rotors.

Steve.

I haven't taken it back to toyota for the recall yet as I am away but when i get home I will get them looked at.