1971 Chevelle Protect-O-Plate Warranty Card (Kansas City, MO)

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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 ]

Kansas City, Missouri

1st line:
136371K180431 ~ VIN
13637 ~ Chevelle (13), Malibu V8 (6), 2-door sport coupe (37)
1 ~ Model Year of Production: 1971
K ~ Final Assembly Plant: Kansas City, MO.
180431 ~ Sequence Assembly Number, 80,431st 1971 Chevelle at Kansas City

2nd line:
T0126CGC ~ Engine Code: Tonawanda Engine Plant (T) ~ January 26 (0126) ~ 350/250 w/TH350 (CGC)
Y1C17 ~  Transmission Number: Toledo TH350 (Y) ~ Year 1971 (1) ~ March 17 (C17)

3rd line:
GAC071 ~ Rear Axle Number: 2.56:1 ratio (GA) ~ Buffalo (C) ~ March 11 (071*)
B ~ Carburetor Source: Bay City

G-1 ~ Power Steering [RPO N40]
I-3 ~ Radio [RPO U63/U69/U79] (any one of the three)

C ~ Vehicle Build Month: March

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