General Motors option code

GU6  — 3.42 Axle

GU6 (3.42 Axle): a General Motors factory option code recorded on 1 model across 1994–2002, with installs and price where a source states them.

1 model · 9 model years · 9 sources

Black fourth-generation Firebird with its pointed nose and pop-up headlamps, front three-quarter in a parking lot
Shown: 1993–1997 Pontiac Firebird in black Photo: Bull-Doser, public domain, via Wikimedia Commons

Every sourced appearance

Year Model As named that year Price Installs
1994 Pontiac Firebird and Trans Am 3.42 Axle RPO Unknown 4,712 Reported
1995 Pontiac Firebird and Trans Am 3.42 Axle RPO Unknown 10,442 Reported
1996 Pontiac Firebird and Trans Am 3.42 Axle RPO Unknown 7,054 Reported
1997 Pontiac Firebird and Trans Am 3.42 Axle RPO Unknown 8,580 Reported
1998 Pontiac Firebird and Trans Am 3.42 Axle RPO Unknown 7,609 Reported
1999 Pontiac Firebird and Trans Am 3.42 Axle RPO Unknown 10,501 Reported
2000 Pontiac Firebird and Trans Am 3.42 Axle RPO Unknown 18,578 Reported
2001 Pontiac Firebird and Trans Am 3.42 Axle RPO Unknown 13,572 Reported
2002 Pontiac Firebird and Trans Am 3.42 Axle RPO Unknown 12,998 Reported

Every row traces to the source it links from on that model's own year page; this table only collects them in one place.