Yes the paste is highly recommened. Helps keep the oil from wicking up and seals the LIM bolts down. LIM Bolt torque spec is 132 inch lbs. Convert that to ft lbs and you have 11 ft lbs. I did mine at 15 ft lbs cause I used the AC Delco metal gaskets.

Make sure you tighten the LIM bolts in sequence.

89 inch pounds is for the UIM, not LIM. Tighten in sequence as well.

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