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Mr. Gasket GM LS Timing Cover & Rear Cover Alignment Tools - 2 Piece Set

Mr. Gasket GM LS Timing Cover & Rear Cover Alignment Tool Set 2 Piece Tool Set - Including: (1) Timing Cover Alignment Tools for Use w/o Front Seal in Cover (1) Rear Cover Alignment Tool

PART# VK090003

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The timing cover and rear cover on GM LS series engines don't have any dowel pins to ensure correct alignment to the center-line of the crankshaft & this often leads to annoying leaks at the front damper seal and rear main seal. These special alignment tools center the front or rear cover when it is installed, and allow an easy way to install the seal (by lightly tapping on the tool w/ rubber mallet). Plastic construction w/ O-rings. Made in the USA.


  • Centers Covers on the Crankshaft to Avoid Seal Leaks
  • Tool Can Also Be Used to Install Seal – LSTC1 or LSRC1 (Lightly Tap on Tool to Push Seal w/ Rubber Mallet)
  • Plastic Construction w/ O-rings
  • Made in the USA


BrandHolley Kits
Emission Code5
Product TypeLS Timing Cover & Rear Cover Alignment Tools
Part NumberVK090003



This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Tech Resources

Apply motor oil to O-Rings on tools - helps to prevent damage to O-rings. LSTC1 tool is slightly more accurate than the LSTC2 tool since the rubber seal in the cover is a little more flexible.


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