1990-1998 GMC Sierra: Year-to-Year Changes
Updated: 11/23/08
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Learn about the year-to-year changes of the 1990-1998 GMC Sierra. Get full details of the styling and performance changes throughout the history of the 1990-1998 GMC Sierra.
Year to Year Changes
1991 GMC Sierra:
A substantially revised 7.4-liter V8 could now be mated to an automatic transmission. Front bucket seats and a new gauge cluster while a tachometer joined the option list.
1992 GMC Sierra:
A flare-fendered cargo box became available on extended-cab models for '92. No more 4-speed manual gearboxes were installed.
1993 GMC Sierra:
Sierra's new automatic transmission gained electronic controls. A passenger seatback recliner was added to 40/60 split bench seats and low-back buckets. All windows now had tinted glass.
1994 GMC Sierra:
Grilles earned modest revision as new door guard beams and a center high-mounted stoplamp were installed. Two 6.5-liter diesel V8s joined the option list: a normally aspirated version rated 155 horsepower, and a 180-horsepower turbodiesel.
1995 GMC Sierra:
A driver-side airbag went into a revised interior, and 4-wheel antilock braking was installed on all models. The new dashboard featured cupholders and rotary climate controls.
1996 GMC Sierra:
Vortec engines arrived in '96, delivering more power. The new 4.3-liter V6 gained 40 horsepower (reaching 200). The 5.0-liter V8 gained 45 horsepower, the 5.7-liter added 50 horses, and the 7.4-liter V8 gained 60 horsepower (now 290). The heavy-duty 5.7-liter V8 now was rated 245 horsepower (up 65). An optional rear side door (on the passenger side) was available only on the C/K 1500 series Club Coupe short-bed SLE and SLT. It cannot be used unless the front door has been opened.
1997 GMC Sierra:
A passenger-side airbag went into all 1500 models and the rear-drive 2500 series. A dashboard switch could shut off the airbag if a rear-facing infant seat was installed.
1998 GMC Sierra:
Sierra saw only modest changes for 1998, and a new model was released in '99.
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