tonk...tonk
#1
tonk...tonk
On deceleration I get a soft "tonk" and then on acceleration another soft "tonk". There's also a low bassy vibration. I assume bad U-joints. Any alternate diagnosis out there?
So, best way to confirm this suspicion? Also, if anyone has brand recommendations or any details I should know when ordering that would be great!
I've replaced these on my XJ6, any differences here in the XJS?
So, best way to confirm this suspicion? Also, if anyone has brand recommendations or any details I should know when ordering that would be great!
I've replaced these on my XJ6, any differences here in the XJS?
#2
How is the transmission mount, IIRC Greg had a vibration on decel that turned out to be the trans mount.
Replacing the U joints is not difficult. When I did mine I used Corvette solid joints which are much stronger. To get them out and in I used a G clamp and a couple of appropriately sized sockets.
Replacing the U joints is not difficult. When I did mine I used Corvette solid joints which are much stronger. To get them out and in I used a G clamp and a couple of appropriately sized sockets.
#4
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#8
A few ideas to add to the others:
- Exhaust fouling the cage is my favourite of all the above suggestions
- Check the radius arm bushes and fixing bolts both ends
- Check the lower inner fulcrum brackets are still tightly bolted to the diff. (A search on "dog bone" should reveal a thread on this matter)
- Check rear shock absorber fixings are tight
- Check prop shaft bolts are tight BOTH ends
- Check drive shaft bolts are tight both ends
- Check all cage to chassis bolts are tight
- If all negative, check the diff is secured to the cage tightly (requires axle to be dropped as fixings are at the cage top