Reply #14 Hi Ian, yes I have also heard that so I always jack under the diff. Don't want to hijack this thread but briefly the story from the thread linked above is: "At about 35mph, rear of car suddenly stepped out to the middle of the road and crabbed along with no prior warning. Earlier in the day I had done some 'hot' laps of Hethel, and this happened on the way home 36 miles later. The car is a 1991 and had done about 16,000 road miles. Arch sand blasted and re powder coated the chassis including the tube in 2004 when I did a ground up rebuild. At no time did they or I notice anything wrong. Always jacked from under the diff, but previous owner could have used the tube as a jacking point." Guy