Muscle Car/Hot Rod/Racing 2-Wheel Drive 4/5-Speed Automatic Automatic 4-Speed 700R4/4L60 - 4 bolt housing - Mechanical Speedo. Replaces 7" tailhousing. Transmission mount not provided on GV adapter. Must modify factory crossmember. 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.