Play it and freeze it, Puds you are correct, The rear left wheel grows and un settles the car. As i shifted into second it basically 'lit up' the rear tyres! with slicks they can grow a un believable amount, at one point the rear is jacked up a ridiculous amount! then shortly after BOTH RH wheels are off the deck!! then i correct and the rear RH tyre slips across the middle res (No glue/Grip) the when it gets back on the sticky stuff it digs in causing the 'Tank slapper' simple really ;-)
All seems good though, the new shell is going on today and engine, turbo, trans, me, my sphinchter all seem good