new T bar

For tightening the control arm bushings and strut rod; yes.
Do it this way.
1. using the t-bar adjusters, set the factory ride height, or whatever your target is. (If its a fish, its 1" something).
2. Tighten your bushings.

Once heads, intake, fluids etc are all done, reset your ride hieght to the same or close to the hieght you used in number 1.
Arm positions will be the same as when you tightened everything.