2-Wheel Drive 3-Speed Automatics Automatic 3-Speed 727 12" tailhousing. Replaces 12" tailhousing with fixed yoke. 70 & newer Dodge truck and motorhomes, without driveline parking brake. Install price - $750.00* *Typical install & drive shaft modifications. Does not include any modifications to exhaust, transmission tunnel or any other custom modifications that may be required.