Allison Cracked transmission tail shaft housings (located between the transfer case and the transmission) are a common problem for GM Allison-equipped 4x4 pick-ups in off-road and drag racing situations. Even a normal amount of driveline vibration can cause the housing to fail, resulting in a transmission fluid leak or worse; internal transmission and transfer case damage. Once the housing cracks, repairing it requires removal of the transmission and transfer case.
PPE’s new Transmission Transfer Case Brace helps support the overhanging, heavy transfer case by spreading the load up and across the adaptor housing to the center section of the transmission.
PPE’s Transmission Transfer Case Brace utilizes two 304 stainless-steel 7/8 inch support tubes tied together with a thick 304 stainless-steel plate for increased strength and service life.
Mounting the brace is a quick and easy job that can be done without removal of the transmission or transfer case. No special tools required.
Item #: 129021115PPETransfer Case & Parts|Transmission Kits and Lines
SunCoast Allison Transfer Case Brace (2011-2016)New
SunCoast Transfer Case Brace. Due to the cantilever effect of the rear trans mount, the transmission rear adapter housing is prone to cracking. The slightest amount of rear drive shaft vibration can result in a very expensive transmission repair. Help your transmission with this easily installed brace. Installs in less than 30 minutes with no special modifications or tools required.
Item #: A1-TCB-11SuncoastTransfer Case & Parts|Transmission Fittings/Hardware
Wehrli Custom Fab 2011-2019 LML/L5P Duramax Allison 4x4 Transfer Case BraceNew
2011-2019 LML/L5P Duramax Allison Transfer Case Braces have been developed and tested for use on high horsepower Duramax applications, adding significant strength and reducing driveline flex common to extreme use such as off-roading, pulling, and drag racing. Helps eliminate the possibility of a cracked transmission tail housing on your Allison transmission from driveline vibrations due to things like a damaged u-joint or driveshaft by spreading the transfer case load across the transmission center section.
Installs easily with basic hand tools. No removal of transmission or transfer case required.
Item #: WCF100140Wehrli Custom FabricationTransfer Case & Parts|Transfer Case & Parts
Description: Fabricated tubular steel support connects rear housing of Allison transmission to transfer case reinforcing the weaker tail housing section to eliminate flex caused by driveline vibrations which...More Details »