VIN Decoder for classic cars & trucks (1950-1980)
Decoded:
Basic
Model Year 1968
Make Plymouth
Series Road Runner
Trim Level Coupe
Original Base Price $2,895.00
No. Produced 29,240
Body
Body Maker Plymouth
No. Doors 2
Model Number RM21
Weight 3,405lbs
Dimension
Wheelbase 115.5 inches
Length 202.7 inches
Width 76.4 inches
Height 53.1 inches
Front Tread 59.5 inches
Rear Tread 59.2 inches
Engine
Type V8, OHV
Displacement 383 cu. in.
Cylinders 8
Bore & Stroke 4 1/4 & 3 3/8 inches
Compression Ratio-Std 10.0 to 1
Brake Horsepower 335@5200
Rated Horsepower 57.8
Torque 425@3400
Main Bearings 5
Valve Lifters Hydraulic
Engine No. Location Stamped on block pan rail at left rear corner below starter opening.
Lubrication Pressure to all bearings excluding wrist pin
Carburetor
Type Downdraft 4-barrel
Make Carter
Transmission
Type Fully synchronized
Drive Rear wheel drive
No. Of Gears 4
1st 2.66 to 1
2nd 1.91
3rd 1.39
4th 1 to 1
Reverse 2.58
Clutch Type
Clutch Type Single plate dry disc
Clutch Size 11 inches
Axle Type
Axle Type Semifloating
Differential
Differential Hypoid
Differential Ratio 3.23 to 1
Suspension
Front Independent torsion bar
Rear Hotchkiss
Steering Gear
Steering Gear Recirculating ball
Brakes
Service Hydraulic, self-adjusting drums
Front Size 10 inches
Rear Size 10 inches
Emergency Rear service brakes
Size 10 inches
Other Systems Specifications
Exhaust System Dual
Ignition System Distributor and coil
Battery 12 volt storage battery
Cooling System Water pump
Radiator Tube and spacer
Fuel Type Premium
Wheels, Rims & Tires
Tire Size F70 x 14
Spare Location Trunk
Capacities
Fuel 19 Gallons
Oil 4 Quarts
Transmission 9 Pints
Cooling System 17 Quarts
Rear Differential 4 Pints
Classic Rating
Classic Rating Milestone Car
VIN/ID
VIN/Serial no. Starting RM21G8a100001
VIN Description Total Digits: 13 Digits 1-2: Series Digits 3-4: Body style Digits 5: Engine Digits 6: Model year Digits 7: Assembly plant Digits 8-13: Production number
VIN Location On plate on left front door body hinge pillar post.