CBM Motorsports CBM-10449 LS Series Front and Rear Cover Alignment Tool Plus Oil pan Alignment Tool
Don't be fooled by more expensive alignment tools. Ours are made to very tight tolerances and get the same job done for half the price. This is a must for people replacing the front or real main seal in a GM LS Series engine. Will work on all LS series engine. LS1, LS2, LS3, LS4, LS6, LS7, LS9, L92, L76