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I can wiggle my driveshaft side to side, the center bushing/bearing moves if I tug on the driveshaft side to side, is it time to replace it, or does this joint allow play? The boot is not visibly torn, but I do get a vibration on the highway at 60 MPH. Any ideas?
 

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I did by a Toyota one in May. (175$)
Still have my little vibration from 100-130 KMH, "blurring" my rear view mirror...
some side to side play is normal, that is the job of this bearing I suppose.
 

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thats EXACTLY what my car does, the mirror blurs, so then mine isnt finished yet, I didnt know what its supposed to be like, because it has play.
 

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What a coincidence!

I replaced my center bearing yesterday (did the transmission seal @ the driveshaft as well). The old bearing had significant play in all directions, the new one is much tighter.

I still have to test drive the car though...

A good thing is I didn't have to remove the complete driveshaft; the forward half was sufficient to pull out the driveshaft with the bearing.

Zoe
 

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can you post up after your test drive?? I would apreciate that, tell me how it went! I dont want to replace mine for nothing......
 

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When I removed mt transmission to fix my speedo gear drive clip, I removed my drive shaft. I thought I marked it good enough to put it back in the same position but I must not have because since then between 3000 and 4000 rpms, intermittently, I will get a pretty big vibration. I attribute it to an off balance driveshaft. I believe my center carrier bushing has about an inch of play if I grab the driveshaft and wiggle it. Curious to see if that was normal, 2 days ago when I removed another supra's driveshaft I inspected that center carrier bushing and it was pretty much the same; about an inch worth of play when wiggling the driveshaft. However I don't know if that car has vibration while driving.
 

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can you post up after your test drive?? I would apreciate that, tell me how it went! I dont want to replace mine for nothing......
Yeah, probably tonight; yesterday I just went into town (at least no vibration up to 50 mph :)

Zoe
 

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I have a 3 new u-joints / re-balanced unit and have it too.
Had it before the rebuilt, have it after...
 

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Supposedly Ford dealerships have a device, or a machine, not sure but anyway, that can detect vibration and tell you what the problem is by the frequency, and tone/pitch of it.
This is according to the Ford Fact program that exists at UTI. I have only heard this thing exists. I haven't learned anything about it. If it was a big enough problem, you could take it to Ford for a diagnosis. Just a thought.
 

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OK, here's my drive report with the new center bearing:

Good news: The vibration (especially under acceleration) at around 100 - 120 kmh (60-70 mph) is definitely gone. Also no vibration at all at speeds below that.

Bad news: I now have a vibration at speeds more than 140 kmh. I went up to 160 kmh (100 mph) and there is now a vibration that I didn't always had before.

Could it be the transmission mount? I once had an old beater Ford Escort (the Euro model, mind) which had an extremely bad vibration and it turned out that the transmission mount was toast.

Zoe
 

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OK, here's my drive report with the new center bearing:

Good news: The vibration (especially under acceleration) at around 100 - 120 kmh (60-70 mph) is definitely gone. Also no vibration at all at speeds below that.

Bad news: I now have a vibration at speeds more than 140 kmh. I went up to 160 kmh (100 mph) and there is now a vibration that I didn't always had before.

Could it be the transmission mount? I once had an old beater Ford Escort (the Euro model, mind) which had an extremely bad vibration and it turned out that the transmission mount was toast.

Zoe
do you feel the vibration in the steering wheel or in the car in general? tranny mount is a possibility. is your car auto or stick? auto cars tend to shift weird when the tranny mount goes, not sure about manual cars. if you feel it in the steering you could need an alignment or tie rods. bad wheel bearings can cause vibrations as well, esp. at higher speeds.

take someone for a ride with you and try to re-create the vibrations. have them try to figure out more or less where its coming from...front or rear of car, which side, etc. that will make life easier trying to figure out whats wrong.
 

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1 piece driveshafts are NOT the way to go to remove vibration from the driveline. The larger one-piece shaft is inherently more difficult to balance, and is a heavier item to come OUT of balance once the U-Joints wear down. NOT TO MENTION the fact that a STOCK MKII set of Flanges & Joints is IDIOTIC to get as a 1-piece. Seriously why spend $250 plus on a driveshaft that you'll have to replace due to staked U-Joints. IF you get a one piece shaft make sure it has replacable U-Joints.

I just went through the headache of a completely custom 2 piece driveshaft for my 7M-GTE swap. Using the A340 MKIII Auto Tranny Front Half, a MKIII Carrier bearing, a lengthened MKIII Rear Half, and a custom drilled rear flange mount for the diff.

$44 each for new Toyota U-Joints (MKIII) $176 (@ cost) MKIII Carrier Bearing (which has NO PLAY AT ALL), and $380 bucks for the Driveshaft to be made and balanced.

Now I have a driveshaft that is easier for the shop to balance, will stay balanced longer, I don't have to drop my diff to change my clutch, or pull my engine to pull my driveshaft, and if I twist out a U-Joint I can replace it on the side of the Road.

You're crazy if you want a 1-Piece.
 

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do you feel the vibration in the steering wheel or in the car in general? tranny mount is a possibility. is your car auto or stick? auto cars tend to shift weird when the tranny mount goes, not sure about manual cars. if you feel it in the steering you could need an alignment or tie rods. bad wheel bearings can cause vibrations as well, esp. at higher speeds.

take someone for a ride with you and try to re-create the vibrations. have them try to figure out more or less where its coming from...front or rear of car, which side, etc. that will make life easier trying to figure out whats wrong.
The vibration is defintely coming from under the car, the steering wheel is pretty silent. The impression is that the vibration is now more located towards the front of the car, whereas before it felt more coming from the middle, but this might be wishful thinking as well. The car is manual shift btw.

I'm planning to go for a long ride (Italy) next week, I'll see what the car does. There's a lot of mountain passes to go over and I'll see whether the vibration under heavy acceleration will come back (I hope not).

Cheers,

Zoe
 

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Just replaced my tranny mount, before I removed it I could wiggle end of tranny side to side , Now solid with a little up and down. Old one fell apart in my hand as I took it out. For $35.00 and a easy 30min to change, it worth it.
 

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Just replaced my tranny mount, before I removed it I could wiggle end of tranny side to side , Now solid with a little up and down. Old one fell apart in my hand as I took it out. For $35.00 and a easy 30min to change, it worth it.
35 bucks? Wow. Toyota here in good ole' Germany wants close to 100 Euros for it, thats around 130 USD with the current exchange rate.

Any hints on how to do it best? I guess putting the front on jackstands, supporting the tranny with a jack, dismounting this little crossmember, unbolt all bolts, put everything back in in reverse sequence?

You don't happen to have any part numbers btw? I'm a complete idiot when it comes to using the parts catalog, especially the "part number translation"....

I guess that's a job for after my holidays....

Zoe
 
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