• This is the extension housing section that bolts on the rear of the transmission that contains the overdrive components. 
• The transmission does not need to be removed to install the OD section, just the transfer case. 

• This overdrive unit has been disassembled, cleaned, inspected & rebuilt using professional grade parts by a professional transmission rebuilder.
• It includes the 6 Pinion OD Planet & 10 friction OD direct clutch pack along with the following other new parts. 
• NEW OD Sun Gear Bearing & Thrust Plate
• NEW Output Shaft Bushings
• NEW OD Direct Clutch Plates 
• NEW OD Brake Clutch Plates
• NEW OD Direct Snap Ring
• NEW Gasket, Housing To Case
• NEW Gasket, Housing to Transfer Case

• Core must be enroute within 30 days or the warranty is void.
• Prepaid UPS return label included for the core return. 
• Just box it up making sure it doesn't leak any oil, ( best to seal in a double plastic bag after draining ) apply the prepaid label & give to any UPS driver or UPS Store.

• Case to OD housing gasket
• Transfer case to OD housing gasket

• If you are replacing your overdrive unit due to a broken housing, here are some causes to help prevent it from happening again. Cracked housings on the our rebuilt unit will not be covered & will void the warranty.
• If the housing is cracked or broken toward the rear half then you most likely have a driveline vibration of some kind ( i.e. u-joints, bent / out of balance shaft, mounts grounding out, etc. ) even if you can't feel it in the truck.  If you don't find the source you'll most likely break the replacement unit also. 
• Shifting into park before coming to a complete stop.
• Installing the OD section & tightening the bolts before the OD is flush again the case.

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