SLT 4x2 Extended Cab 6.6 ft. box
1999 GMC Sierra 1500 Specs

Interior
Front head room	41 "
Rear head room	38 "
Front shoulder room	65 "
Rear shoulder room	66 "
Front hip room	61 "
Rear hip room	62 "
Front leg room	41.3 "
Rear leg room	33.7 "
Maximum cargo capacity	49.7 cu.ft.
Standard seating	6

Exterior
Length	227.5 "
Body width	78.5 "
Body height	71.2 "
Wheelbase	143.5 "
Curb	4,235 lbs.
Gross weight	6,200 lbs.

Fuel
Fuel tank capacity	26.0 gal.
EPA mileage estimates	16 City / 21 Hwy

Performance
Base engine size	4.8 liters
Base engine type	V-8
Horsepower	255 hp
Horsepower rpm	5,200
Torque	285 lb-ft.
Torque rpm	4,000
Payload	1,965 lbs.
Maximum towing capacity	6,000 lbs.
Drive type	rear-wheel
Turning radius	23.3 ''

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1999 GMC Sierra 1500 Specs

1999 GMC Sierra 1500 trims (24)

(SL) 4x2 Standard Cab 6.6 ft. box

(SL) 4x2 Standard Cab 8 ft. box

(SL) 4x4 Standard Cab 6.6 ft. box

(SL) 4x4 Standard Cab 8 ft. box

(SLE) 4x2 Standard Cab 6.6 ft. box

(SLE) 4x2 Standard Cab 8 ft. box

(SL) 4x2 Extended Cab 6.6 ft. box

(SL) 4x2 Extended Cab 8 ft. box

(SLE) 4x2 Extended Cab 141.5 in. WB

(SLT) 4x2 Extended Cab 141.5 in. WB

(SLE) 4x4 Standard Cab 6.6 ft. box

(SLE) 4x4 Standard Cab 8 ft. box

(SLT) 4x2 Extended Cab 6.6 ft. box

(SLE) 4x2 Extended Cab 6.6 ft. box

(SLT) 4x2 Extended Cab 8 ft. box

(SLE) 4x2 Extended Cab 8 ft. box

(SL) 4x4 Extended Cab 6.6 ft. box

(SL) 4x4 Extended Cab 8 ft. box

(SLT) 4x4 Extended Cab 141.5 in. WB

(SLE) 4x4 Extended Cab 141.5 in. WB

(SLT) 4x4 Extended Cab 6.6 ft. box

(SLE) 4x4 Extended Cab 6.6 ft. box

(SLE) 4x4 Extended Cab 8 ft. box

(SLT) 4x4 Extended Cab 8 ft. box

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