RPO codes

[John Chamberlain]

Ok so i have a 1985 chevy monte carlo ss and was going through the RPO code list and i have a few codes that im not able to find ive looked and these codes on the sticker why trying to find them if anyone can tell me what they are be very thankful (missing code list E7Z,FC3,FC4,6KY,7KY,8HN,9HN) FOUND ALL OTHER CODES ON STICKER BUT THESE

 

[pagrunt]

Those are assembly line codes
E7Z-Sensor, Vehicle speed, delete
FC3, FC4-Fleet Incentive
6KY-Computer Selective, Front Left Spring
7KY-Computer Selective, Front Right Spring
8HN-Computer Selective, Rear Left Spring
9HN-Computer Selective, Rear Right Spring

 

[John Chamberlain]

Thanks