[Healeys] Differential Noise

[Michael Hartfield]

There is looseness and a clank when the slack is taken up in the drive train
of my 1965 BJ8.  I thought it was in the universal joints,but they appear
tight.  The slack seems to be in the differential.  How much free play is
tolerable as you rotate the drive shaft? And is there danger in too much
slack or is the free play normal and I should get used to it??

Michael
BJ8