Thread: AK1 RPO Option
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Old 04-15-2007   #5
HARRYS91GTASLP
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Re: AK1 RPO Option

Quote:
Originally Posted by HARRYS91GTASLP
This addresses the Camaro, but may apply to the Firebird:

There were two option codes that covered deluxe lap and shoulder belts in 1968 - AK1 and ZK3. AK1 was used pre-January, with ZK3 replacing it. Why? The current CRG theory, based on 1983 Parts Manual RPO Table designations, is that AK1 was the normal GM code for deluxe lap and shoulder belts in BOTH front and rear. The 1968 Camaro engineers misused this definition at the start of that model year - having deluxe shoulder belts in the front only. To correct this inconsistency a new code was created for a combination of deluxe lap front and rear and deluxe front shoulder only, and AK1 was replaced, for Camaro use, with ZK3, starting in January 1968.

std standard lap belts: 2 front with buckets, 3 front with bench,
2 rear 67, 3 rear 68-69
AK1 Aug-Dec 67 coupe deluxe lap belts and front harness, replaced by ZK3
AS1 standard front harness (coupe used ended Dec 67)
A68 standard rear center belt (67 only - only for short period)
A39 deluxe lap belts (no harness) (coupe use ended Dec 67)
AL5 deluxe rear center (67 only - only for short period)
A85 deluxe front harness (coupe thru Dec 67 only)
AS4 68-69 deluxe rear harness
AS5 68-69 standard rear harness
ZK3 Jan 68-69 coupe deluxe lap belts and front harness; supercedes AK1
YA1 69 dealer ordering code for custom belts (A39 or ZK3 as appropriate)
YA2 69 dealer ordering code for rear harness (AS4 or AS5 as appropriate)
YA3 69 dealer ordering
Basically, the AK1 may signify "Color-coded" seatbelts.

AK1 DELUXE BELT AND SHOULDER HARNESS
AK1 RESTRAINT SYSTEM, FRT, CTR, RR SEAT, FRT SHLDR,
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