Body plate decoding.
Scott, I'll take a stab at it but 75 isn't my strong suit. Here goes:

ST 75 - 1975 model year production
3 - Oldsmobile division
AJ - model; Cutlass Supreme
57 - Body style - 2 door hardtop
LAN - Lansing Fisher body works
419430 - body number assigned by FBW
TR 110 - white interior, swivel bucket seat with reversible seat cushion.
PNT 11 11U - Lower body cameo white, upper body cameo white
04C - time build date; third week (c) of April (04) 1975
AN7 - RPO code for swing out strato bucket seats
73X - RPO code - ( I believe for interior color Carmine dash and console)
From what I've seen of your car, this matches up except you are missing the swivel buckets? Any chance you do have them but just haven't located the swivel lever for it?

ST 75 - 1975 model year production
3 - Oldsmobile division
AJ - model; Cutlass Supreme
57 - Body style - 2 door hardtop
LAN - Lansing Fisher body works
419430 - body number assigned by FBW
TR 110 - white interior, swivel bucket seat with reversible seat cushion.
PNT 11 11U - Lower body cameo white, upper body cameo white
04C - time build date; third week (c) of April (04) 1975
AN7 - RPO code for swing out strato bucket seats
73X - RPO code - ( I believe for interior color Carmine dash and console)
From what I've seen of your car, this matches up except you are missing the swivel buckets? Any chance you do have them but just haven't located the swivel lever for it?
Last edited by Allan R; Mar 8, 2015 at 08:17 PM. Reason: fix typo
The 73X is just a guess based on the preceding RPO codes being linked to Carmine. BTW, the cowl tag has the correct Phillips head screws holding it in place. That change was introduced in 1973.
To swivel the seats here's the info from the 75 owners manual
To swivel the seats here's the info from the 75 owners manual
I'm sure you can find them. Check in on the 73-77 Forum. They will know where to look.
I just googled GM swivel bucket seats and they pop right up. Theses seats weren't exclusive to Olds, and I believe Legendary has the covers available.
http://www.gmsports.com/content/1973...l-bucket-seats as an example
I just googled GM swivel bucket seats and they pop right up. Theses seats weren't exclusive to Olds, and I believe Legendary has the covers available.
http://www.gmsports.com/content/1973...l-bucket-seats as an example
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