The 2-1/8" Torsion Bar looks like this from the back of the transmission crossmember. 

The 1.5" Torsion Bar looks like this from the back of the transmission crossmember. 

In the hole on the bottom of the crossmember is where you will find the torsion bar adjustment bolt. 

O'Rileys, Autozone and most auto parts stores will loan you a GM Torsion Bar Unloading Tool at no charge with a deposit. 

Or you can purchase one from us and not have to worry about having it in time it will be sent with your kit.