GM 15854940
Motor Mount

After separating the left side engine mount bracket from the engine mount (1500 LY2) and its bolts you can detach the bracket. You should put the new engine mount bracket onto the frame before inspecting that all original adhesive residue is completely gone. Denatured alcohol alongside an equivalent substance should treat the bolts' threads before they dry completely. Lubricate the bolts with GM threadlock P/N 12345382 (and Canadian P/N 10953489 equivalent) while observing the fastener precautions to safeguard the vehicle body. Fasten the engine mount bracket bolts with 65 Nm (48 lb ft) torque. Finally, install the engine mount (1500 LY2).

Apply threadlocker GM P/N 12345382 (Canadian P/N 10953489) or equivalent to the bolts.

Raise and support the vehicle appropriately.

Install the transmission mount to crossmember nut, tightening it to 40 N.m (30 lb ft), and then lower the vehicle.

Position the new transmission mount and install the transmission mount to transmission bolts, tightening them to 50 Nm (37 lb ft).

Raise the engine slightly with the adjustable jack.

Tighten the bolts to 75 N.m (55 lb ft).

Lower the vehicle and then remove the left wheelhouse liner.

Use a transmission jack to support the transmission.

Tighten them to 75 N.m (55 lb ft).

Use an adjustable jack on the square tab at the rear of the engine block, which requires removing the starter.

Remove the oil pan skid plate bolts and plate, ensuring not to use a jack under the oil pan, any sheet metal, or the crankshaft pulley to avoid component damage.

Remove the transmission mount to crossmember nut and the transmission mount to transmission bolts.

Remove the bracket itself.