Information on Excessive Use of RTV Silicone Sealant on New Venture Gear (NVG) and Borg Warner Transfer Cases During Service
| Subject: | Information on Excessive Use of RTV Silicone Sealant on New Venture Gear (NVG) and Borg Warner Transfer Cases During Service |
| Models: | 2005 and Prior Light Duty Trucks |
| with Four Wheel Drive (4WD) or All Wheel Drive (AWD) |
| and NVG or Borg Warner Transfer Case |
Previously repaired transfer cases that were returned and reviewed at the Warranty Parts Center (WPC) indicate excessive use of RTV silicone on the case halves during field service assembly.
Important:
• Excessive use of RTV silicone during field service assembly may result in bearing failure. • DO NOT apply RTV silicone to both case halves during assembly. • ONLY apply RTV silicone to the rear case half as indicated in the Unit Repair Manual. • DO NOT apply a bead of silicone in EXCESS of 3 mm (1/8 in) to the rear case half.
Excessive use of RTV between the transfer case halves during field service assembly may cause the oil pickup screen to become plugged. This may result in a transfer case bearing failure due to lack of proper lubrication.
ONLY apply a 3 mm (1/8 in) bead of sealant, GM P/N 12345739 (Canadian P/N 10953541), or equivalent, onto the rear case half during assembly as shown above. Refer to the Unit Repair Manual for additional information.
Failure to follow these sealant guidelines during assembly may result in a repeat repair and a dissatisfied customer.
