Originally Posted by dennisV
The 6.1 hasnt been replaced. It just had some updates. The T3 is going to be replaced with the T4, which is a different platform.
All you need to make your tc6.1 the tc6.1WC are
2x A vertical ball stud bearing caps
2x B vertical ball stud bearing caps
1x new chassis
front and rear shock stay (although these can be modded and cut down to be a cheaper alternative)
And your tc6.1 is transformed into the tc6.1WC