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**Palf70Step** · 10-25-2007, 08:41 PM

According to the writeup in Wikopedia.

1988-98
Introduced in April 1987 as 1988 models (known as the GMT400 platform), there were eight different versions of the C/K line for 1988: Fleetside Single Cab, Fleetside Extended Cab, Fleetside Crew Cab, and Stepside Single Cab, each in either 2WD (C) or 4WD (K) drivelines. Three trim levels were available: Cheyenne, Scottsdale, and Silverado. Engines were a 160 hp (119 kW) 4.3 L V6, a 175 hp (130 kW) 5.0 L V8, a 210 hp (157 kW) 5.7 L V8 and a 6.2 L diesel V8. A 230 hp (172 kW) 7.4 L V8 was available in the 3/4-ton and one-ton trucks. In 1989, a fleetside Sport package was available with matching body color bumpers and grille, chrome wheels, and fog lights. A Z71 off-road package was also available with skid plates and Bilstein shocks. The Work Truck (W/T) was also introduced in 1990, which featured a single cab long bed with Cheyenne trim and new grille with black bumpers. In 1991, the 4L80-E automatic transmission was available for the 3/4-ton and one-ton trucks. In 1992, the 4-speed manual transmission was dropped and the stepside trucks were available with extended cabs. The 6.5 L diesel V8 was also made available with a turbocharger. In 1993, the Sport package was made available for the stepside models, featuring body color bumpers, mirrors, and grille with cast aluminum wheels. The 700R4 transmission was replaced with the 4L60-E automatic in 1993 also. In 1994, the 6.2 L diesel V8 was dropped and the trucks received grille updates. In 1995, the trucks received an updated interior and audio system. Four wheel ABS brakes were made standard in 1995 as well as driver's side airbag on 1/2 ton models. The Vortec V8s were introduced in 1996, with power boosts across the board for the gasoline engines, thanks to high-flow cylinder heads, new camshaft, roller valve lifters and a higher compression ratio. Speed sensitive steering was introduced on the trucks in 1997 along with a passenger side airbag. 1998 saw a revision to the steering wheel and airbag system and also the addition of the PASSLOCK II antitheft system.

This platform was one of two where the traditional small-block Chevrolet V8 was last used (the G-series van was the last platform using the small block until the end of the 2002 model year).

The GMT800 platform was introduced in 1999 although the GMT400 platform was produced until the 2000 model year in response to fleet sales. Although no longer produced in the U.S., GMT400s are currently produced in Brasil powered with a Chevrolet inline six.

454 SS

In 1990, Chevrolet introduced a high performance variant of the GMT400 under the Super Sport brand called the 454 SS. It was available in only regular cab half-ton specification in Onyx Black. The 454 SS was powered by a 454 cu in (7.4 L) V8 producing 230 hp (172 kW) and 385 ft·lbf (522 N·m). A 3-speed automatic transmission and 3.73 rear axle ratio added to the truck's performance. The suspension was also upgraded with 32 mm (1.3 in) Bilstein gas-filled shock absorbers, a 32 mm (1.3 in) front stabilizer bar, and 12.7:1 fast-ratio steering gear assembly.

Unique exterior features included a front air dam with fog lights, special rims, decals displaying "454 SS" on the trunk sides, red trim emblems, and black painted grille, bumpers, and mirrors. The interior was also unique with a special plush Garnet Red cloth with black trim, high-back reclining sport bucket seats, and center console.

MSRP of the 1990 model was US$18,295 with a US$550 destination charge. 16,953 total units were sold over the 4 years the 454 SS was in production with 1990, the first year of production, selling 13,748 units alone. The 454 SS was discontinued after the 1993 model year.

Also found
http://www.sportruck.com/factory/fac...vrolet%20Sport

10-25-2007, 08:41 PM	#14
Palf70Step State of Confusion! Join Date: Jul 2002 Location: Gulfport, MS USA Posts: 46,642	Re: Chevy Sport Truck questions According to the writeup in Wikopedia. 1988-98 Introduced in April 1987 as 1988 models (known as the GMT400 platform), there were eight different versions of the C/K line for 1988: Fleetside Single Cab, Fleetside Extended Cab, Fleetside Crew Cab, and Stepside Single Cab, each in either 2WD (C) or 4WD (K) drivelines. Three trim levels were available: Cheyenne, Scottsdale, and Silverado. Engines were a 160 hp (119 kW) 4.3 L V6, a 175 hp (130 kW) 5.0 L V8, a 210 hp (157 kW) 5.7 L V8 and a 6.2 L diesel V8. A 230 hp (172 kW) 7.4 L V8 was available in the 3/4-ton and one-ton trucks. In 1989, a fleetside Sport package was available with matching body color bumpers and grille, chrome wheels, and fog lights. A Z71 off-road package was also available with skid plates and Bilstein shocks. The Work Truck (W/T) was also introduced in 1990, which featured a single cab long bed with Cheyenne trim and new grille with black bumpers. In 1991, the 4L80-E automatic transmission was available for the 3/4-ton and one-ton trucks. In 1992, the 4-speed manual transmission was dropped and the stepside trucks were available with extended cabs. The 6.5 L diesel V8 was also made available with a turbocharger. In 1993, the Sport package was made available for the stepside models, featuring body color bumpers, mirrors, and grille with cast aluminum wheels. The 700R4 transmission was replaced with the 4L60-E automatic in 1993 also. In 1994, the 6.2 L diesel V8 was dropped and the trucks received grille updates. In 1995, the trucks received an updated interior and audio system. Four wheel ABS brakes were made standard in 1995 as well as driver's side airbag on 1/2 ton models. The Vortec V8s were introduced in 1996, with power boosts across the board for the gasoline engines, thanks to high-flow cylinder heads, new camshaft, roller valve lifters and a higher compression ratio. Speed sensitive steering was introduced on the trucks in 1997 along with a passenger side airbag. 1998 saw a revision to the steering wheel and airbag system and also the addition of the PASSLOCK II antitheft system. This platform was one of two where the traditional small-block Chevrolet V8 was last used (the G-series van was the last platform using the small block until the end of the 2002 model year). The GMT800 platform was introduced in 1999 although the GMT400 platform was produced until the 2000 model year in response to fleet sales. Although no longer produced in the U.S., GMT400s are currently produced in Brasil powered with a Chevrolet inline six. 454 SS In 1990, Chevrolet introduced a high performance variant of the GMT400 under the Super Sport brand called the 454 SS. It was available in only regular cab half-ton specification in Onyx Black. The 454 SS was powered by a 454 cu in (7.4 L) V8 producing 230 hp (172 kW) and 385 ft·lbf (522 N·m). A 3-speed automatic transmission and 3.73 rear axle ratio added to the truck's performance. The suspension was also upgraded with 32 mm (1.3 in) Bilstein gas-filled shock absorbers, a 32 mm (1.3 in) front stabilizer bar, and 12.7:1 fast-ratio steering gear assembly. Unique exterior features included a front air dam with fog lights, special rims, decals displaying "454 SS" on the trunk sides, red trim emblems, and black painted grille, bumpers, and mirrors. The interior was also unique with a special plush Garnet Red cloth with black trim, high-back reclining sport bucket seats, and center console. MSRP of the 1990 model was US$18,295 with a US$550 destination charge. 16,953 total units were sold over the 4 years the 454 SS was in production with 1990, the first year of production, selling 13,748 units alone. The 454 SS was discontinued after the 1993 model year. Also found http://www.sportruck.com/factory/fac...vrolet%20Sport __________________ Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God!