Above you can see broken output shaft after another stand still burnout. Interesting that original version is not solid style, meanwhile stare I put in from diesel version is solid - not a tube style like original. After some thinking come with conclusion that this was caused by wheel bounce, cause original engine/gearbox mounts and not enough rpm and wet road and tyre pressure or just some of mentioned :) Anyhow polyurethane ones rest on shelf already and be tested some time around.