C 1500 Yukon XL 2WD V8-5.3L VIN T (2001)
3. Install NEW exhaust manifold pipe seals to the exhaust manifolds.
4. Install the right exhaust manifold pipe nuts until sung.
5. Install the left exhaust manifold pipe nuts until snug.
6. Tighten the exhaust manifold pipe nuts.
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Tighten the exhaust manifold pipe nuts to 50 Nm (39 ft. lbs.).
7. Install the exhaust muffler nuts.
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Tighten the exhaust muffler nuts to 40 Nm (30 ft. lbs.).
