Dirt Road Magazine - Jeep ID Chart - (dirtroad.com)
Early CJ-5
Identifying or common characteristics:
- 1954-71 production
- Round headlamps
- Rounded body and fenders
- F-head 4cyl (1954-71)
- Fuel-fill still under driver's seat
- Buick 225 V6 (1966-71)
- AMC 232 or 258 I6 or AMC 304 V8 (1972-75)
- Saginaw steering (1972-75)
- Dana 18 transfer case
- Rear of door cutout follows fender
1972-83 CJ-5
Identifying or common characteristics:
- 1972-83 production
- Round headlamps
- Rounded body and fenders
- I-6 motor now available
- Fuel-fill now at rear of vehicle
- AMC model 20 rear axle
- Disc brakes (1977-83)
- Slightly longer than the earlier CJ-5
- Rear of door cutout follows fender
CJ-6
Identifying or common characteristics:
- 1955-76 US sales production
- Round headlamps
- Rounded body and fenders
- Extended version of the CJ-5
- Rear of door cutout follows fender
CJ5/6-A Tuxedo Park Mk IV
Identifying or common characteristics:
- Based on Early CJ5
- 1964-67 US sales production
- Round headlamps
- Rounded body and fenders
- Rear of door cutout follows fender
- 60/40 Bench Seat
- 2-Stage Variable-Rate Springs
- Extra Chrome