Muscle Car/Hot Rod/Racing 2-Wheel Drive 2/3-Speed Automatic Automatic 3-Speed C-4 13" Tailhousing. Replaces 13" tailhousing. 60's - 70's cars and street rods. 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.