Installation Procedure

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of 6L90-E Exhaust Pipe Hanger Bracket & Bolts

Courtesy of GENERAL MOTORS CORP.

CAUTION: Refer to Fastener Caution .

If equipped with a 6L90-E automatic transmission, RPO MYD, install the exhaust pipe hanger bracket and bolts and tighten to 25 N.m (18 lb ft).

Fig 2: View Of RPO MW7 Exhaust Pipe Hanger Bracket, Bolts & Studs

Courtesy of GENERAL MOTORS CORP.

If equipped with a Allison® automatic transmission, RPO MW7, install the exhaust pipe hanger bracket and bolt/stud and tighten to 25 N.m (18 lb ft).

Fig 3: View Of Exhaust Pipe Hanger Bracket & Bolts

Courtesy of GENERAL MOTORS CORP.

If equipped with a 4L80-E automatic transmission, RPO MT1, install the exhaust pipe hanger bracket and bolts and tighten to 25 N.m (18 lb ft).
If equipped with a 6.6L engine, install the catalytic converter. Refer to Catalytic Converter Replacement (LY6 with Exhaust Flange) or Catalytic Converter Replacement (L9H with Exhaust Flange) or Catalytic Converter Replacement (Gen IV Engines with Exhaust Clamp) or Catalytic Converter Replacement (LFA with Exhaust Clamp) or Catalytic Converter Replacement (LMM) .
If equipped with a 6.0L engine, install the left catalytic converter. Refer to Catalytic Converter Replacement - Left Side (Cab Chassis) .
If equipped with a 6.0L engine, install the exhaust manifold pipe. Refer to Exhaust Manifold Pipe Replacement .