Fleetwood coupes and sedans carried the same standard equipment as the DeVille duo, along with
Powertrains were the same as DeVille's. This was the final year for Fleetwood as a separate model. In 1986 it would become a DeVille option package. Fleetwood prices began at $21,495, which was more than $3000 higher than DeVille.
| Model | Series Number | Body/Style Number | Body Type | Seating | Factory Price | Shipping Weight | Production Total |
| Fleetwood (Front-Drive V-8) | 6C | B47 | 2-door Coupe | 6 | $21,495 | 3267 lb | 37,485 (total includes the 2-door DeVille) |
| Fleetwood (Front-Drive V8) | 6C | B69 | 4-door Sedan | 6 | $21,466 | 3364 lb | 114,278 (total included the 4-door DeVille) |
Engine note: Diesel V-6 engines were available on Fleetwood models.
| Feature | BASE V-8 | OPTIONAL DIESEL V-6 |
| Type | 90-degree, overhead valve V-8. Cast iron block and head | 90-degree, overhead valve V-8. Cast iron block and head |
| Displacement | 249 cu. in. (4.1 liters | 262 cu. in. (4.3 liters |
| Bore & stroke | 3.47 x 3.31 in. | 4.06 x 3.39 in. |
| Compression ratio | 8.5:1 | 21.6:1 |
| Brake horsepower | 125 at 4200 R.P.M. | 85 at 3600 R.P.M. |
| Torque | 190 lbs.-ft. at 2200 R.P.M. | 165 lbs.-ft. at 1600 R.P.M. |
| Main bearings | Five | Four |
| Valve lifters | Hydraulic | Hydraulic |
| Fuel Supply | Fuel Injection | Fuel Injection |
| Feature | Fleetwood |
| Wheelbase | 110.8 in. |
| Overall length | 195.0 in. |
| Height | 55.0 in. |
| Width | 71.7 in. |
| Front Tread | 60.3 in. |
| Rear Tread | 59.8 in. |
| Standard Tires | P205/75R14 SBR WSW |
| Feature | Fleetwood |
| Transmission | Four-speed overdrive automatic (THM440-T4 |
| Gear Ratio | (1st) 2.92:1; (2nd) 1.57:1; (3rd) 1.00:1; (4th) 0.67:1; (Rev) 2.38:1 |
| Standard final drive ratio | 2.97:1 except with diesel, 3.06:1 |
| Steering | rack-and-pinion |
| Front suspension | MacPherson struts, lower control arms, coil springs and stabilizer bar |
| Rear suspension | independent struts, coil springs, stabilizer bar, electronic level control |
| Brakes | front disc, rear drum |
| Disc dia. | 10.25 in. |
| Drum dia. | 8.9 in. |
| Fuel tank | 18 gal |
1984