Clunk when shifting into drive

[swhme]

My 240k mile ‘05 has a clunk when shifting into drive. I can also sometimes reproduce it at speed by going from coasting to accelerating.

This is the list of stuff I’ve put together for the shop to check out at my next appointment— anything else they should look at?

• Grease all shafts properly
• Inspect U-joints
• Inspect slip yokes
• Fresh fluids:
  • transmission
  • transfer case
  • both diffs
• Check driveshaft balance
• Torque all flange hardware
• Check Engine + transmission mounts
• Check rear control arm bushings / panhard bushings

 

[Scotty UZJ100]

Front diff bushings
Front drive hub flanges

 

[TnTnola]

Front diff bushings
Front drive hub flanges

I did this and it helped reduced the clunk. One last thing to resolve the faint clunk is new cv shafts.

 

[TahoeZ]

K

Thread 'The OFFICIAL clunk/thunk driveshaft thread'

Jul 24, 2010

My thunk has gotten to the point where I will spare no expense and go to the ends of the earth to fix. Re-greasing was making it better, but not completely solving it. However the rear was re-greased about two months ago and now it is thunking worse than ever.

About 18 months ago I had the u-joints replaced but that didn't fix it at all. My less than trusty dealer says to replace the driveshafts and some "control arms"? will cost about $1,600.

If I am not completely senseless, the thunk is definitely coming from the rear.

What steps, short of replacing everything, can I take to...

• Kigiin
• Replies: 707
• Forum: 100-Series Cruisers

 

[TnTnola]

The front bushing on the housing is the main culprit.

 

[2001LC]

Number one is wheel hub flange to FDS (AKA: CV) axle splines. You'll chase clunk endless if they're not corrected first.




Axle hub flange to axle excessive play. Toyota 100 series - https://www.youtube.com/watch?v=alBo9ZvB2f0&t=41s

 

[2001LC]

Wheel hub flanges worn out.

New

FDS axle splines worn out

Re using hub flange Snap Ring, result in damage to FDS axle snap ring groove.

New

 

[Arubaoffroad]

The front bushing on the housing is the main culprit.

View attachment 4154004

View attachment 4154005

Hi, i'm new to the forum. Have a 2002 LX470 100 series and just learning about this beautiful car. Which housing is this exactly?

 

[frawstme]

Hi, i'm new to the forum. Have a 2002 LX470 100 series and just learning about this beautiful car. Which housing is this exactly?

Front differential. Take off the plastic shield under your car and you'll see it

 

[ScotyDosentKnow]

Number one is wheel hub flange to FDS (AKA: CV) axle splines. You'll chase clunk endless if they're not corrected first.




Axle hub flange to axle excessive play. Toyota 100 series - https://www.youtube.com/watch?v=alBo9ZvB2f0&t=41s

Mine would rotate what looked like a 1/4" back and forth when tested. Replacing with OEM CV and flanges got rid of it almost completely. I then replaced motor and transmission mounts and it got worse lol I think new firmer mounts exaggerated clunking from the diff mounts. Diff mounts are next up when I get around to it.

 

[ScotyDosentKnow]

Also to OP I would replace CV and hub flanges together. If you just do the hub flanges I suspect the worn CV's will rock back and forth in there and wear them out again.

 

[dbbowen]

Also to OP I would replace CV and hub flanges together. If you just do the hub flanges I suspect the worn CV's will rock back and forth in there and wear them out again.

1000000000000000% this. Slapping new flanges on will fix the problem for a few weeks but youll be right back to clunking. You want new CVs AND new flanges at the same time. And might as well do your wheel bearings while youre in there.

I replaced every diff bushing on mine first and they didnt do anything for the clunk, but i at least have all new diff bushings at least

 

[ScotyDosentKnow]

1000000000000000% this. Slapping new flanges on will fix the problem for a few weeks but youll be right back to clunking. You want new CVs AND new flanges at the same time. And might as well do your wheel bearings while youre in there.

I replaced every diff bushing on mine first and they didnt do anything for the clunk, but i at least have all new diff bushings at least

If your doing the wheel bearing while your in there (its a great idea) you might want to do the front brakes as well, its a slippery slope lol

 

[dbbowen]

If your doing the wheel bearing while your in there (its a great idea) you might want to do the front brakes as well, its a slippery slope lol

lol it wouldnt hurt! Now that i think about it. The diff seals could be replaced too with new oem lol