Hi Guys
Thanks for your input and ideas.This problem of mine sounds unique so maybe I haven't descrbed it properly so I'll try again.
On the slower corners and coming out of corners the ute fells great.The two quicker corners 110k's or thereabouts which also create the most G's the inside rear feels like it is coming off the deck (I have no evidence of it off the ground though)and the body roll is more pronounced.
I have just measured that my front struts had 80mm travel on the day (the old rubber band around the shaft trick) and I have 50mm travel till the bumpstops bottoms out. I think I am starting to answer my own question .
It sounds like the bump stops are bottoming and doing strange things to the rear end.
Tell me if I am wrong and if I am right tell me what you think will make it right.
I am thinking a rear sway would help and also some quality rear shocks.Also taking a little off the bump stops for more travel.
Rear end consists of standard springs reset so wheel lip is 590mm off the ground.Overload spring has been removed.
The shocks are of unknown parentage.
Once again thanks to all for their input especially Bert (I will give you a call to have a gasbag).
Cheers
Bob