Fastener Specifications

2025 Chevrolet Trailblazer ACTIV, FWDSECTION Fastener Specifications
Single Use Non-Threaded Fasteners/Components

NOTE:

All fasteners/components listed in this table MUST BE DISCARDED and replaced with NEW after removal. 

Application
Catalytic Converter Gasket
Exhaust System Front Gasket
Reusable Threaded Fastener Tightening Specifications

NOTE:

All fasteners listed in this table can be reused after removal. 

Application Specification
Metric (English)
Catalytic Converter Brace Bracket Bolt 22 N.m (16 lb ft)
Catalytic Converter Brace Bracket Nut 22 N.m (16 lb ft)
Catalytic Converter Brace Stud 9 N.m (80 lb in)
Catalytic Converter Heat Shield Bolt 10 N.m (89 lb in)
Catalytic Converter Nut 22 N.m (16 lb ft)
Exhaust Front Bracket Bolt 22 N.m (16 lb ft)
Exhaust Front Bracket Nut 22 N.m (16 lb ft)
Exhaust Hanger Bracket Bolt 22 N.m (16 lb ft)
Exhaust Heat Shield Bolt 9 N.m (80 lb in)
Exhaust Heat Shield Retainer 1.5 N.m (13 lb in)
Exhaust Pipe Clamp (L3T, Catalytic Converter) 15 N.m (11 lb ft)
Exhaust Pipe Clamp (LIH, Catalytic Converter) 20 N.m (15 lb ft)
Exhaust Pipe Clamp (Exhaust Muffler) 22 N.m (16 lb ft)
Exhaust System Intermediate Nut 22 N.m (16 lb ft)
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.