1955 2nd Series Classic Chevy Big Trucks 2018-10-25T18:56:10+00:00

1955-2nd  VIN – Model – Series Identification

RPO = Regular Production Options

Serial Numbers locations

*ENGINE**TRANSMISSION*
V8 Numbers = Top of Right Hand Bank at the front.
6 Cylinder Numbers = On boss at the rear of the distributor
3-speed conventional, overdrive and 4-speed = rear face.
3-speed Heavy Duty = left side at rear.
5-speed = right side rear bottom.
Automatic = left side at rear.
*REAR END**VEHICLE*
Series 3100 = front face.  All Other = top.
Forward Control = left hand side on steering column.
Flat Face Cowl = front face of cowl top panel.
All Other = body hinge pillar.

Vehicle Serial Numbers

Example: L255B001456
L = Series*, 2 = 2nd Series, 55 = Year, B = Assembly Plant,
001456 = Unit Number beginning with 001001 at each plant regardless of Series.
* = The letter “V” prefix to the Series designation will identify models equipped with optional V-8 engine.

 

SeriesDesignationTon    SeriesWheel Base (in)Model Type
H1/23100114Flat Face Cowl Chassis, Cab Chassis, Pickup, Panel, Suburban, W/S Cowl Chassis & Cameo
M1/23200123.2Pickup
F1/23400104Forward Control Chassis
G3/43500125Forward Control Chassis
J3/43600123.2Flat Face Cowl Chassis, Cab Chassis, Pickup, Platform, Stake & W/S Cowl Chassis
K13700137Forward Control Chassis
L13800135Flat Face Cowl Chassis, Cab Chassis, Pickup, Panel, Platform, Stake & W/S Cowl Chassis
N1-1/24100130Flat Face Cowl Chassis, Cab Chassis, Platform, Stake & W/S Cowl Chassis
P1-1/24400154Flat Face Cowl Chassis, Cab Chassis, Platform, Stake & W/S Cowl Chassis
R1-1/24500128.2Flat Face Cowl Chassis
S25100112.6Cab Chassis
T25400136.6Cab Chassis, Platform, Stake
U25700160.6Cab Chassis
V26100130Flat Face Cowl Chassis, Cab Chassis, Platform, Stake & W/S Cowl Chassis
W26400154Flat Face Cowl Chassis, Cab Chassis, Platform, Stake & W/S Cowl Chassis
X26500172Flat Face Cowl Chassis, Cab Chassis & W/S Cowl Chassis
Y26700194Flat Face Cowl Chassis
Z26800220Flat Face Cowl Chassis
SS1-1/2HD5100S112.6Cab Chassis
ST1-1/2HD5400S136.6Cab Chassis, Platform & Stake
SU1-1/2HD5700S160.6Cab Chassis
SV1-1/2HD6100S130Flat Face Cowl Chassis, Cab Chassis, Platform, Stake & W/S Cowl Chassis
SW1-1/2HD6400S154Flat Face Cowl Chassis, Cab Chassis, Platform, Stake & W/S Cowl Chassis
SX1-1/2HD6500S172Flat Face Cowl Chassis, Cab Chassis & W/S Cowl Chassis
	S = "Special" Model
 
	Series 31-3200 = Light Duty
	Series 34-35-36-37-3800  = Medium Duty
	Series 40-50-60 = Heavy Duty
	ASSEMBLY PLANTS:
	A = Atlanta
	B = Baltimore
	F = Flint
	J = Janesville
	K = Kansas City
	L = Los Angeles
	N = Norwood
	O = Oakland
	S = St. Louis
	T = Tarrytown

Rear Axle Identification (Chevrolet)
Example:  AF 2 12
AF = Type, series and assembly Plant designation
2 = Month
12 = Day of month

Axle numbers are stamped on the front or top of the Carrier.

Capacity (lbs)TypeRatiosSeries
3300AF3.90:131 and 3200 Regular Production
3300AG4.11:131 and 3200 with RPO 315
5000CA5.14:134-35-3700 Regular Production
5000CB5.14:134-35-37-3800 with RPO 295
5000CC4.57:13600 Regular Production also with RPO’s 314-316-318
5000CD4.57:13600 with RPO 282
5000CE5.14:134-35-3700 with RPO’s 314-316-318
7200CF5.14:13800 Regular Production, (34-35-3700 RPO 272)
11000CG6.17:14000 Regular Production
11000CH6.17:15000 Regular Production; (6000 with RPO 252)
13000CJ6.17:16000 Regular Production
15000CM7.20:15-6000 RPO 252
15000CK5.83/7.955-6000 RPO 202; also 4000 RPO 243
15000CL6.40/8.7250-60 RPO 201
30000DA7.20:110400-10500-10700 with Tandem Equipment RPO 476

Front Axle Identification

MakeCapacity (lbs)I-Beam Height (average)SpecSeries
Chevrolet22002.06 – 2.1231-3200
Chevrolet25002.19 – 2.343600
Chevrolet35002.19 – 2.343800
Chevrolet40002.19 – 2.3441-4400
Chevrolet40002.44 – 2.5934-35-3700
Chevrolet45002.44 – 2.5945-5000-61-6500 (RPO 41-4400)
Chevrolet47502.44 – 2.596702-6802

Engine Serial Numbers
Example:  0201234 F 255 B
0201234 = Unit Number starting with 0001001 at each source; 6 & 8 cylinder engines are numbered separately.
F = Flint; T = Tonawanda (on 8 cyl engines, 55); (on 6 cyl engines, 255)
255 = Year (2nd Series 1955)
B = Type and Series designation.

TypeSeriesDescription
X31-3200Thriftmaster 235 with 3-speed (regular production)
M31-3200Trademaster 265 with HD Clutch
SC31-3200Thriftmaster 235 with HD Clutch with RPO 227
DC31-3200Trademaster 265 RPO 408 (exc. Auto. Trans.)
B31-3200Trademaster 265 with Hydramatic Transmission
XA3600Thriftmaster 235 (regular production)
MA3600Trademaster 265 with HD Clutch (RPO 314)
SA3600Thriftmaster 235 with HD Clutch (RPO 227)
DA3600Trademaster 265 RPO 408 (exc. Auto. Trans.)
BA3600Trademaster 265 RPO 408 with Hydramatic Transmission
T34-35-3700Thriftmaster 235 (regular production)
L34-35-3700Trademaster 265 with HD Clutch (RPO 314)
XB3800Thriftmaster 235 (regular production)
MB3800Trademaster 265 with HD Clutch (RPO 314)
SB3800Thriftmaster 235 with HD Clutch
DB3800Trademaster 265 with HD Clutch RPO 409 (exc. Auto. Trans.)
BB3800Trademaster 265 RPO 409 with Hydramatic Transmission
S4000Thriftmaster 235
PA4000Loadmaster HD 235 (regular production) RPO 225
D4000Trademaster 265 RPO 409
E5000Taskmaster 265, 6000 RPO 409
P6000Thriftmaster 235
N6000Jobmaster 261 RPO 225

Transmission Identification

Three Speed Conventional and Overdrive
Example: M 2 28
M = Muncie; S = Saginaw
2 = Month
28 = Day of Month

Four Speed Syncro-Mesh
Example: T 2 28
T = Toledo
2 = Month
28 = Day of Month

 

Four Speed Automatic (Hydramatic)
Series 31-3200  – Orange Plate Color
Series 34-35-36-38-4000  – Black Plate Color

Three Speed Heavy Duty
Example: W B 28 5 2
W = Borg Warner 
B = Month (February)	
28 = Day of Month
5 = Year
2 = Shift