kick in the rear (axle)

[AHSprite78@aol.com]

I finally got the sprite on the road and running good.  When I'm going along
and let off of the gas the rear end gives a kick.  It throw the car around
pretty good.  I think there was a discussion on this a while back.  What was
the final diagnosis?  Thanks in advance.

Matthew Smith   
'67 Sprite