The car is numbers matching, motor and trans. The center chunk is a 3:55/489 out of a 72 dodge truck that I put a new sure grip in. The 3:23 gear set that came out of the car is in NE Oklahoma in storage.I did get the correct speedo gear when I changed the gear ratio.the car was ordered with drum brakes on front instead of disks. I Installed a kh set up for safety.