[C2] Window Sticker Options Coding
Thread Starter
Melting Slicks
Joined: Aug 2005
Posts: 2,995
Likes: 61
From: Fort Wayne IN
Window Sticker Options Coding
What is the significance of the first digit 2 in before the RPO# and the two letters after the RPO#.
Example: 2M20AA is a 4 speed Muncie Transmission
Thanks in advance
Greg
Example: 2M20AA is a 4 speed Muncie Transmission
Thanks in advance
Greg
Race Director
Joined: Apr 2005
Posts: 11,253
Likes: 2,122
From: Bowling Green, Kentucky
Can't help with the "2" prefix. But the "AA" suffix is the exception code that provides additional detail on which cars can accept this option. AA should be all cars.....no exceptions An AB (for instance) might be the option/part is for only a big block car, or something similar.
An actual/better example is Option N14 side pipes, AA indicates it fits small block car, AB means it fits big block cars, AC is for base engine and automatic trans, and AD is for BB engine with auto trans. Get the idea??
Larry
EDIT: Most of the guys doing reproduction window and tank stickers know all about these suffix codes. But years ago, that was not the case..........and it provided a way to tell if a document/sticker was original or a reproduction. A lot of early reproduction tank stickers missed this for the big block side pipe cars and coded all with "AA" suffix.
An actual/better example is Option N14 side pipes, AA indicates it fits small block car, AB means it fits big block cars, AC is for base engine and automatic trans, and AD is for BB engine with auto trans. Get the idea??
Larry
EDIT: Most of the guys doing reproduction window and tank stickers know all about these suffix codes. But years ago, that was not the case..........and it provided a way to tell if a document/sticker was original or a reproduction. A lot of early reproduction tank stickers missed this for the big block side pipe cars and coded all with "AA" suffix.
Last edited by Powershift; Jul 22, 2018 at 05:18 PM.
Race Director
Joined: Apr 2005
Posts: 11,253
Likes: 2,122
From: Bowling Green, Kentucky
I have both an AOS small block car and the factory tank sticker. 
