It's darn hard to detect bad u-joints just by grasping and shaking the axle or
yoke. Even experts can easily get tripped by them. They are just held in too
firmly for your punny forces to impress then enough to show their looseness.
But with a few minutes of work, you can reveal their wear secrets.
Unbolt the four bolts holding the inner flanges together. Now you've got the
play you need to detect slop in the u-joints.
Stephane St-Amant wrote:
> Hello Gang,
>
> Well, the spit is finally safetied, plated, and on the road, but...
>
> I have a nasty shake comming from the back when I reach about 65km/h
> (35-40mph) and doesn't stop with speed.
> The wheels are balanced and the tires are new. I've asked my LBC mechanic
> to look at the U-joints and he said they looked OK. Could the diff be
> causing the vibration?
>
> The PO told me it needed some repairs but I assumed it was leaking but I
> didn't think it would cause vibration. I'm planning on replacing the
> U-joints this weekend (the car was sitting for 10 years), cheap and quick,
> to see if it fixes the problem. But if it doesn't, what part of the diff
> could be causing the vibration? Or any other ideas?
>
> Once again TIA
> Steph
> '69 Spit - Hers and on the road (although shaky!)
> '71 TR6 - Mine (In pieces!)
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