Exhaust Pipe/Muffler Hanger: Service and Repair
Exhaust Hanger Mounting Bracket Replacement (6.0L, 6.6L)
Removal Procedure
1. If equipped with a 6.0L engine, remove the exhaust manifold pipe. Refer to Exhaust Manifold Pipe Replacement (6.0L - Cab/Chassis) (Service and Repair) .
2. If equipped with a 6.0L engine, remove the left catalytic converter. Refer to Catalytic Converter Replacement - Left Side (6.0L - Cab/Chassis) (Catalytic Converter Replacement - Left Side (6.0L - Cab/Chassis)) .
3. If equipped with a 6.6L engine, remove the catalytic converter. Refer to Catalytic Converter Replacement (4.3L) (Catalytic Converter Replacement)Catalytic Converter Replacement (4.8L, 5.3L, 6.0L, 6.2L) (Catalytic Converter Replacement)Catalytic Converter Replacement (6.6L) (Catalytic Converter Replacement) .
4. If equipped with a 4L80-E automatic transmission, regular production option (RPO) MT1, remove the exhaust pipe hanger bracket bolts and bracket.
5. If equipped with a Allison(R) automatic transmission, RPO MW7, remove the exhaust pipe hanger bracket bolt/stud and bracket.
6. If equipped with a 6L90-E automatic transmission, RPO MYD, remove the exhaust pipe hanger bracket bolts and bracket.
Installation Procedure
Notice: Refer to Fastener Notice .
1. If equipped with a 6L90-E automatic transmission, RPO MYD, install the exhaust pipe hanger bracket and bolts.
Tighten the bolts to 25 N.m (18 lb ft).
2. If equipped with a Allison(R) automatic transmission, RPO MW7, install the exhaust pipe hanger bracket and bolt/stud.
Tighten the bolt/stud to 25 N.m (18 lb ft).
3. If equipped with a 4L80-E automatic transmission, RPO MT1, install the exhaust pipe hanger bracket and bolts.
Tighten the bolts to 25 N.m (18 lb ft).
4. If equipped with a 6.6L engine, install the catalytic converter. Refer to Catalytic Converter Replacement (4.3L) (Catalytic Converter Replacement)Catalytic Converter Replacement (4.8L, 5.3L, 6.0L, 6.2L) (Catalytic Converter Replacement)Catalytic Converter Replacement (6.6L) (Catalytic Converter Replacement) .
5. If equipped with a 6.0L engine, install the left catalytic converter. Refer to Catalytic Converter Replacement - Left Side (6.0L - Cab/Chassis) (Catalytic Converter Replacement - Left Side (6.0L - Cab/Chassis)) .
6. If equipped with a 6.0L engine, install the exhaust manifold pipe. Refer to Exhaust Manifold Pipe Replacement (6.0L - Cab/Chassis) (Service and Repair) .