Install a NEW case fluid passage seal (89) into the transmission case assembly.
Apply a 3 mm (1/8 in) bead of sealant GM P/N 89020326 (Canadian P/N 89021188) on the inside of the bolt holes of the scaling flange of the torque converter housing assembly.
Install the torque converter housing assembly to the transmission case assembly.
Apply threadlocker GM P/N 12345382 (Canadian P/N 10953499), to the threads of all the torque converter housing bolts.
Install the 12 - M8 x 1.25 x 30 mm bolts (4) and hand tighten.
Install the 1 - M8 x 1.25 x 30 mm bolt/studs (3) and hand tighten.
Install the 2 - M8 x 1.25 x 35 mm bolts (6) and hand tighten.
Install the 1 - M8 x 1.25 x 45 mm bolt (7) and hand tighten.
Install the 1 - M8 x 1.25 x 30 mm TORX 40 bolt (8) and hand tighten.