Here is a couple simple but very effective tools to help you make easy work of aligning your LS1-2-3-6-7-9-LQ4-LQ9-4.8L-5.3L-6.0L-6.2L Timing and Rear Main Covers. The AlignIt tools get the covers centered perfectly with the crank. After the covers are centered, use the AlignIt Tools to install the seals in seconds! (See videos) Having the seal centered accurately with the crank minimizes the chance of seal leakage. If you prefer not to replace your Timing Cover Seal we have the Hub Simulator AlignIt Tool that allows the Timing cover to be aligned with the timing cover seal installed.
Purchase the full kit or individual. http://www.saccitycorvette.com/AlignItTools.html