Line 5 Build Codes.
Build codes run from line 3, 4 and 5. Most of the numbers are the last few digits of the factory production
part numbers.
- TORSION BAR LT RT:
The last three digits of the part number for the Torsion Bars Left and Right.
LT
- 779 = 1857779 Left HD 41x.090 B-body
- 781 = 1857781 Left HD 41x.092 B-body 440/426
RT
- 778 = 1857778 Right HD 41x.090 B-body
- 780 = 1857780 Right HD 41x.092 B-body 440/426
- REAR SPRINGS LT RT:
The last three digits of the part number for the Rear Springs Left and Right.
- 794 = 2539794 Left B-body 6 leafs
- 964 = 2539964 Right B-body 5 full + 2 ½ leafs
- CLUTCH/BRAKE PEDAL:
The two digit code for the Clutch and Brake Pedal. For 1971 the first box is for the BRAKE PEDAL, the second box is for the CLUTCH PEDAL.
BRAKE
- 53 = 4-spd - manual brakes
- 54 = 4-spd - manual brakes Dress Up
- 57 = Automatic - manual brakes
- 63 = 4-spd - power brakes
- 67 = Automatic - power brakes
- 68 = Automatic - power brakes w/speed control
CLUTCH
- 00 = Automatic - no clutch standard pedal
- 01 = Automatic - no clutch pedal Dress Up
- 20 = 4-spd - standard clutch pedal
- 21 = 4-spd - pedal Dress Up
- LABELS:
Two separate boxes. The first box is the last two digits of the part number for the Vehicle Lable VEC. The second box is the last two digits of the part number for the tire pressure decal lable TIRE.
VEC
- 32 = 3577732 340 CID 4bbl
- 72 = 3614872 383 CID 4bbl Manual Trans
- 73 = 3614873 383 CID 4bbl Auto Trans
- 75 = 3614875 440 CID 4bbl Manual Trans
- 76 = 3614876 440 CID 4bbl Auto Trans
- 77 = 3614877 440 CID 6bbl
- 78 = 3614878 426 CID 4bbl Manual Trans
- 79 = 3614879 426 CID 4bbl Auto Trans
TIRE
- 63 = 3402163 B-Body G70x14
- 36 = 3402336 B-Body F70x14
- EXHAUST:
The last two digits of the factory assembly line part number for the Exhaust system.
LT
- 00 = UNKNOWN PART # Dual exhaust
RT
- 17 = UNKNOWN PART # Dual exhaust
- TAIL PIPE:
The last two digits of the factory assembly line part number for the for the Tail Pipes.
LT
- 21 = UNKNOWN PART # Dual exhaust Chrome
RT
- 30 = UNKNOWN PART # Dual exhaust Chrome
- CAR HEIGHT:
This code is for the car ride height.
- BM5
- BM3
- BP5
- BP3
- MAS CYL:
The last two digits of the factory assembly line part number.
- 31 = B-body 440/426 CID drums front/rear
- 42 = B-body 440 CID w/power drum brakes
- 43 = B-body 426 CID 2x4bbl w/power drum brakes
- 45 = B-Body 440 CID w/power disc brakes
- 46 = B-body 426 CID 2x4bbl w/power disc brakes
- FRONT BRAKE LT RT:
The last two digits of the factory assembly line part number.
LT
- 11 = B-body w/11" Drum
- 67 = B-body w/disc brakes
RT
- 10 = B-body w/11" Drum
- 66 = B-body w/disc brakes