1971 Chevelle 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. All examples, so far, also used a three letter suffix code on the rear end axle ratio code.

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.
A L6 Nomad would be 1, Standard would be 3, and Malibu would be 5.

Arlington, Texas

File Photo

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

2nd line:
T0918PD ~ Engine Number: Tonawanda (T) ~ September 18 (0918) ~ 454 LS5, 270hp (PD)
71183CF ~  Transmission Number: Year, 19(71) ~ July 01 (183*) ~ CF (402/454 engine)

3rd line:
CRU223B ~ Rear Axle Number: "C" for Chevrolet ~ "RU" for a 3.31:1 ratio ~ August 10 (223*) ~ Buffalo (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.

File Photo

1st line:
136671R173792 ~ VIN
13667 ~ Chevelle (13), Malibu V8 (6), 2-door convertible (67)
1 ~ Year of Production: 1971
R ~ Final Assembly Plant: Arlington, TX.
173792 ~ Sequence Assembly Number, 21,242nd 1971 Chevelle at Arlington

2nd line:
T0308CPD ~ Engine Number: Tonawanda (T) ~ March 08 (0308) ~ 454 LS5, 270hp (CPD)
352CF ~  Transmission Number: December 18 (352*) ~ CF (402/454 engine)

3rd line:
CRU0692 ~ Rear Axle Number: "C" for Chevrolet ~ "RU" for a 3.31:1 ratio ~ March 10 (069*) ~ 2 is possibly shift number instead of plant?
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.

File Photo
Courtesy Scott Boyd

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

2nd line:
T0614CJD ~ Engine Number: Tonawanda (T) ~ June 14 (0614) ~ 350, 270hp (CJD)
Y1G09HW ~  Transmission Number: TH350/Toledo (Y) ~ Year, 1971 (1) ~ ?(G) ~ June 09 (09H) ~ Warren (W)

3rd line:
CKD1611 ~ Rear Axle Number: "C" Chevrolet ~ "KD" for a 2.73 ratio ~ 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

Baltimore, Maryland

File Photo
Courtesy Joe Saia

1st line:
136371B235969 ~ VIN
13637 ~ Chevelle (13), Malibu V8 (6), 2-door sport coupe (37)
1 ~ Year of Production: 1971
B ~ Final Assembly Plant: Baltimore, MD.
235969 ~ Sequence Assembly Number, 135,969th 1971 Chevelle at Baltimore

2nd line:
T0624CCC ~ Engine Number: Tonawanda (T) ~ June 24 (0624) ~ 307, 200hp (CCC)
B1H15 ~  Transmission Number: TH350/Cleveland (B) ~ Year, 1971 (1) ~ June 15 (H15)

3rd line:
GHC173 ~ Rear Axle Number: "GH" for a 2.73 ~ "C" Chevrolet ~ June 22 (173*)
R ~ Carburetor Source: Rochester (2-bbl)

Options
1   3   1  
G H I J K L M

G - 1 ~ Power Steering [RPO N40]
I - 3 ~ Radio [RPO U63/U69/U79]
K - 1 ~ Air Conditioning [RPO C60]

G ~ Vehicle Build Month: July

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

Van Nuys, California

File Photo

1st line:
135371L123331 ~ VIN
13537 ~ Chevelle (13), Malibu L6 (5), 2-door sport coupe (37)
1 ~ Year of Production: 1971
L ~ Final Assembly Plant: Van Nuys, CA.
123331 ~ Sequence Assembly Number, 23,331st 1971 Chevelle at Van Nuys

2nd line:
F1229CAB ~ Engine Number: Flint (F) ~ December 29 (1229) ~ 250, 155hp (CAB)
C1M18 ~  Transmission Number: Powerglide (C) 197(1) ~ August 18 (M18)

3rd line:
GNC363 ~ Rear Axle Number: 3.08 ratio (GN), Chevrolet (C), December 29 (363*)
B ~ Carburetor Source: Bay City

Options
1   3      
G H I J K L M

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

A ~ Vehicle Build Month: January

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

*  The dates are counted from January 1, 1970