LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Buick >> 2018 >> Regal Base >> Repair and Diagnosis >> Engine Mechanical >> Exhaust System >> Specifications >> Fastener Specifications (3.6L LGX)
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Fastener Specifications (3.6L LGX)

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 Front Pipe Gasket
Exhaust Gasket
Reusable Threaded Fastener Tightening Specifications

NOTE:

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

Application Specification
Metric (English)
Catalytic Converter Nut@Cylinder Head 45 N.m (33 lb ft)
Exhaust Front Pipe Bracket Bolt 22 N.m (16 lb ft)
Exhaust Front Pipe Nut 22 N.m (16 lb ft)
Exhaust Muffler Heat Shield Bolt 9 N.m (80 lb in)
Exhaust Pipe Front Hanger Bracket Bolt 22 N.m (16 lb ft)
Exhaust Pipe Front Hanger Bracket Nut 22 N.m (16 lb ft)
Exhaust Rear Muffler Insulator Bolt 58 N.m (43 lb ft)
Floor Panel Tunnel Panel Front Brace Bolt 22 N.m (16 lb ft)
Floor Panel Tunnel Panel Rear Brace Bolt 22 N.m (16 lb ft)