1971 Chevelle Protect-O-Plate Warranty Card (Arlington, TX)

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Decode your Protect-O-Plate Warranty card

I have more examples but only list a few examples on this page. If you request help with yours, contact me and I'll be glad to answer any questions you have. Include a photo of the Protect-O-Plate as plants often deviate during the model year.

You'll notice some plants used a three letter engine suffix code while some used a two letter code; Arlington even used both for the 454, LS5 engine - PD and CPD. All examples, so far, also used a three letter suffix code on the rear end axle ratio code.

You'll also notice that some plants code the rear end with the assembly plant first followed by the rear axle code and some will code the rear axle code first followed by the assembly plant.

Note:  GM offers 2 explanations on decoding the VIN.  Using the common 13637 as an example:
1. When describing the VIN plate: 1 ~ Chevrolet Division, 36 ~ Malibu V8, 37 ~ 2-door sport coupe
...and...
2. When describing the POP: 13 ~ Chevelle, even number (2,4,6,8) is a V8 - odd number (1,3,5) is a L6, 37 ~ 2-door sport coupe. The engine designations of 2, 4, 6 or 8 for a V8 engine, and 1, 3, or 5 for a L6 engine was determined by the series.

A V8 Nomad would be 2, Greenbrier/Standard would be 4, Concours/Malibu would be 6, and Concours Estate/Monte Carlo would be 8.
An L6 Nomad would be 1, Standard would be 3, and Malibu would be 5
.

[ Arlington ] | [ Baltimore ] | [ Kansas City ] | [ Van Nuys ] | [ Oshawa ]

CHEVELLESTUFF  All Rights Reserved

1st line:
136371R101118 ~ VIN
13637 ~ Chevelle (13), Malibu V8 (6), 2-door sport coupe (37)
1 ~ Model Year of Production: 1971
R ~ Final Assembly Plant: Arlington, TX
101118 ~ Sequence Assembly Number, 1,118th 1971 Chevelle at Arlington

2nd line:
T0728CC ~ Engine Plant: Tonawanda Engine Plant, July 28 (0728), 307/200hp w/TH350 (CC)
B1K23NHP ~  Transmission Number: Cleveland TH350 (B), 1971 (1) ~ July 23 (K23) ~ Night Shift (N) ~ HP (unknown)

3rd line:
CHC202B1 ~ Rear Axle Number: Buffalo (C) ~ Positraction 2.73:1 ratio (HC) ~ July 21 (202*) ~ 2nd shift (B) ~ 1 unknown.
B ~ Carburetor Source: Bay City

Options

1   3   1  
G H I J K L M

G-1 ~ Power Steering [RPO N40]
I-3 ~ Radio type
K - 1 ~ Air Conditioning [RPO C60]

H ~ Vehicle Build Month: August

Owner/dealer info: Original owner's name/address removed for obvious privacy reasons.


CHEVELLESTUFF  All Rights Reserved

1st line:
136371R121242 ~ VIN
13637 ~ Chevelle (13), Malibu V8 (6), 2-door sport coupe (37)
1 ~ Model Year of Production: 1971
R ~ Final Assembly Plant: Arlington, TX
121242 ~ Sequence Assembly Number, 21,242nd 1971 Chevelle at Arlington

2nd line:
T0918PD ~ Engine Plant: Tonawanda Engine Plant, September 18 (0918), 454/270hp w/TH400 (PD)
71183CF ~  Transmission Number: Year 1971 (71) ~ July 01 (183*) ~ Turbo Hydramatic 400 engine code 402/454 (CF)

3rd line:
CRU223B ~ Rear Axle Number: Buffalo, NY (C) ~ 3.31:1 ratio (RU) ~ August 10 (223*) ~ 2nd shift (B).
C ~ Carburetor Source: Carter

Options

1 1 3 3 1  
G H I J K L M

G-1 ~ Power Steering [RPO N40]
H - 1 ~ Power Brakes [RPO J50]
I-3 ~ Radio type
J-3 ~ Disc Brakes [RPO J52]
K - 1 ~ Air Conditioning [RPO C60]

L ~ Vehicle Build Month: November

Owner/dealer info: Original owner's name/address removed for obvious privacy reasons.


CHEVELLESTUFF  All Rights Reserved

1st line:
136671R173792 ~ VIN
13667 ~ Chevelle (13), Malibu V8 (6), 2-door convertible (67)
1 ~ Model Year of Production: 1971
R ~ Final Assembly Plant: Arlington, TX.
173792 ~ Sequence Assembly Number, 73,792nd 1971 Chevelle at Arlington

2nd line:
T0308CPD ~ Engine Plant: Tonawanda Engine Plant ~ March 08 (0308) ~ 454/365hp w/TH400 (CPD)
352CF ~  Transmission Number: December 18 (352*) ~ Turbo Hydramatic 400 engine code 402/454 (CF)

3rd line:
CRU0692 ~ Rear Axle Number: Buffalo, NY (C) ~ 3.31:1 ratio (RU) ~ March 10 (069*) ~ 2nd shift
C ~ Carburetor Source: Carter

Options

1 1 3 3 1  
G H I J K L M

G-1 ~ Power Steering [RPO N40]
H - 1 ~ Power Brakes [RPO J50]
I-3 ~ Radio [RPO U63/U69/U79]
J-3 ~ Disc Brakes [RPO J52]
K - 1 ~ Air Conditioning [RPO C60]

D ~ Vehicle Build Month: April

Owner/dealer info: Original owner's name/address removed for obvious privacy reasons.


CHEVELLESTUFF  All Rights Reserved

1st line:
136371R180946 ~ VIN
13637 ~ Chevelle (13), Malibu V8 (6), 2-door sport coupe (37)
1 ~ Model Year of Production: 1971
R ~ Final Assembly Plant: Arlington, TX.
180946 ~ Sequence Assembly Number, 80,946TH 1971 Chevelle at Arlington

2nd line:
T0503CJD Engine Plant: Tonawanda Engine Plant, May 03  (0503), 350/270hp w/TH350 (CJD)
Y1E07HW ~  Transmission Number: Toledo TH350 (Y) 1971 model year (1), May 01 (E01), unknown (HW)

3rd line:
CKD1242 ~ Rear Axle Number: Buffalo (C), 2.73:1 ratio (KD), May 4 (124 Julian date) *, 2nd shift (2)
C ~ Carburetor Source: Carter

Options

1 1 3 3 1  
G H I J K L M

G-1 ~ Power Steering [RPO N40]
H-1 ~ Power brakes [RPO J50]
I-3 ~ Radio [RPO U63/U69/U79]
J-1 ~ Disc brakes [RPO J52]
K-1 ~ Four-Season air conditioning [RPO C60]

E ~ Vehicle Build Month: May

Owner/dealer info: Original owner's name/address removed for obvious privacy reasons


CHEVELLESTUFF  All Rights Reserved
Courtesy Scott Boyd

1st line:
136371R191307 ~ VIN
13637 ~ Chevelle (13), Malibu V8 (6), 2-door sport coupe (37)
1 ~ Model Year of Production: 1971
R ~ Final Assembly Plant: Arlington, TX.
191307 ~ Sequence Assembly Number, 91,307th 1971 Chevelle at Arlington

2nd line:
T0614CJD ~ Engine Plant: Tonawanda Engine Plant ~ June 14 (0614) ~ L48 350-4/270hp w/TH350 (CJD)
Y1G09HW ~  Transmission Number: TH350 Toledo (Y), Year 197(1) ~ June 09 (G09), unknown HW

3rd line:
CKD1611 ~ Rear Axle Number: Buffalo, NY (C) ~ 2.73:1 ratio (KD) ~ June 10 (161*), 1st shift.
R ~ Carburetor Source: Rochester (4-bbl)

Options

1 1 3 3 1  
G H I J K L M

G-1 ~ Power Steering [RPO N40]
H - 1 ~ Power Brakes [RPO J50]
I-3 ~ Radio [RPO U63/U69/U79]
J-3 ~ Disc Brakes [RPO J52]
K - 1 ~ Air Conditioning [RPO C60]

F ~ Vehicle Build Month: June

Owner/dealer info: Original owner's name/address removed for obvious privacy reasons


CHEVELLESTUFF  All Rights Reserved

1st line:
136371R199163 ~ VIN
13637 ~ Chevelle (13), Malibu V8 (6), 2-door sport coupe (37)
1 ~ Model Year of Production: 1971
R ~ Final Assembly Plant: Arlington, TX.
199163 ~ Sequence Assembly Number, 99,163rd 1971 Chevelle at Arlington

2nd line:
T0525CGC ~ Engine Plant: Tonawanda Engine Plant ~ May 25 (0525) ~ L65 350-2/245p w/TH350 (CGC)
Y1K12HW ~  Transmission Number: TH350 Toledo (Y), Year 197(1) ~ July 12 (K12) ~ unknown HW

3rd line:
CGA1781 ~ Rear Axle Number: Buffalo, NY (C) ~ 2.56:1 ratio (GA) ~ June 27 (178*), 1st shift.
R ~ Carburetor Source: Rochester (4-bbl)

Options

1   3      
G H I J K L M

G-1 ~ Power Steering [RPO N40]
I-3 ~ Radio [RPO U63/U69/U79]

G ~ Vehicle Build Month: July

Owner/dealer info: Original owner's name/address removed for obvious privacy reasons


*  The dates are counted from January 1, 1970 for TH400 and 1971 for TH350
** There is no number 3 in the H position.  New Car Record shows car was ordered with Power Steering and Radio.