SunCoast's Transfer Case Brace was made to save you money and a potential headache due to the cantilever effect of the rear transmission mount on 2001-2010 GM Duramax's. The transmission rear adapter housing is prone to cracking because of the additional leverage. The slightest amount of rear drive shaft vibration can result in a very expensive transmission repair. Help protect your transmission with this easily installed transfer case brace. Installs in less than 30 minutes with no special modifications or tools required.