[Healeys] Rear Knocking noise

[Patrick Yoas]

Paul,
I had a knocking sound several years ago and checked all the stuff that you
did. My noise was actually a rear shock mounting hole that was enlarged. Put a
wrench on both shocks bolts and see it they are tight.
Patrick
BJ8
 
Hi all,
I have a knock coming from my rear end that I am trying to track down.
It occurs only 50% of the time.  Often when jarring the car forward such as
when engaging the overdrive and sometimes when starting to take off.
I don't believe that it is coming from the differential but can't be
certain. When the car is on jacks and I turn the rear wheels back and forth,
I do not get a Knock.
The shackles are all tight.
Could it be the radius arm bushings??     Or the bushes on the spring
shackles?
Thanks
paul