How to identify 1982-92 Camaro Firebird Transmissions and Differentials

Typical Transmission VIN Locations - Manual Transmission

  Typical Transmission VIN Locations - Automatic Transmission

C - THM 200 and THM 400 4R ID Tag location
D - THM 200 and THM 400 4R VIN location
E - THM 200 and THM 400 4R VIN optional location
F - THM 250C ID Stamp location
G - THM 250C VIN location
H - THM 350C stamped ID location
I  - THM 350C VIN location
J - THM 350C optional location
M - THM 700R4 Stamped ID location
N - THM 700R4 VIN location

Rear Axle Identification

Rear axle ratio, differential type, manufacturer and build dates, are stamped on the forward side of the right axle tube. Also on a metal tag attached to the axle cover.