GM 6L80 4WD Extension Housing / Transfer Case Adapter

GM OEM 4x4 extension housing for 6L80/6L90 transmissions. Cast aluminium construction with 6-bolt pattern to transfer case, 3-5/8" thick. 

• GM genuine part Cast #84203235
• Fits all 6L80/6L90 transmissions 2006+
• 6-bolt transfer case mounting pattern
• Supersedes earlier part number 12578123