LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Hummer >> 2008 >> H3 Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 177 (Engine Exhaust System) >> Specifications >> Fastener Tightening Specifications
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Fastener Tightening Specifications

WARNING: This page is about a different car, the 2008 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
Application Specification
Metric English
Bumper Nuts 25 N.m 18 lb ft
Catalytic Converter-to-Exhaust Manifold Nuts 50 N.m 37 lb ft
Drive Shaft Center Bearing Heat Shield Bolts 8 N.m 71 lb in
Exhaust Manifold Heat Shield Bolts 10 N.m 89 lb in
Exhaust Manifold-to-Cylinder Head Bolts (LH2, LC3) 25 N.m 18 lb ft
Exhaust Manifold-to-Cylinder Head Bolts (LY7) 20 N.m 15 lb ft
Exhaust Manifold-to-Cylinder Head Nuts (LH2, LC3) 30 N.m 22 lb ft
Exhaust Manifold-to-Cylinder Head Studs (LH2, LC3) 6 N.m 53 lb in
Muffler Exhaust Pipe-to-Exhaust Manifold Nuts (LH2, LC3) 30 N.m 22 lb ft
Muffler Nuts (LY7) 22 N.m 16 lb ft
Tunnel Brace Bolts 25 N.m 18 lb ft