Got it fixed now
Took shocks off and checked shaft length, all the same.
Adjusted the collars to the same length while i was at it.
Disconnected the sway bars.
Took off top deck and reattatched.
Same problem still there
Anyhow I loosened all the top deck screws, and then gave the chassis a little twist in the right direction, and tightned the ouside 4 screws and it was looking good so i tightned the rest and it is all good
Looks like the standard chassis is a LOT more prone to tweak than the BMI 3mm
(I have Coxys old car)