White-letter SBR tires P255/60R15

Years 1978–79, 2027 Models 2 Factory citations 3

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Also described as Tires, 215/50R17 all-season blackwall

Also documented for Saturn

Documented applications

Corvette (C3)

1978 Factory-verified

$216.32; 18,296 built (CorvSport shows 18,269 — apparent transposition; CAC and CorvetteStory agree on 18,296)

GM Heritage factory kit — 1978 Chevrolet Corvette, p.22.
1979 Factory-verified

$226.20; 17,920 built (price and count: Corvette Black Book; CAC lists size as P255/70R15 — P255/60R15 per the other two sources)

GM Heritage factory kit — 1979 Chevrolet Corvette, p.32.

Bolt — second generation (2027)

2027 Factory-verified

LT, RS: S

GM factory document — 2027 chevrolet new bolt fleet order guide, p.3.

This page aggregates every documented appearance of QBS in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.