That adds up to four basic permutations: 1500 2WD ($37,850), 1500 4WD ($40,650), 2500 2WD ($39,450), and 2500 4WD ($42,350). Suburban 1500 models come equipped with a 5.3-liter V8. The 2500 models are available with a choice of 6.0-liter or 8.1-liter V8s. No diesel is currently available.

The LS is the standard trim in either load range, which includes three-zone manual air conditioning, a 40/20/40 split bench front seat with six-way power for the driver, 60/40 split folding middle bench seat, fog lamps, assist steps, powered and heated outside mirrors, 16-inch aluminum wheels, and a rear window defogger. A Preferred Equipment Group ($1,035) adds bucket seats with upgraded cloth upholstery, a floor console, and a Bose nine-speaker audio system with rear controls and headphone jacks. XM Satellite Radio ($325) is optional.

The more luxurious LT ($5,710) brings automatic climate control, leather seat inserts, power folding mirrors with in-glass turn signals and electrochromic dimming on the driver's side, the Bose stereo, XM Satellite Radio, OnStar, 17-inch aluminum wheels, and many other features. LT is also available for the 2500 ($5,320).

The Z71 off-road package ($6,185) includes heavy-duty springs and gas-pressure shocks, appearance items outside and LT-grade comfort and convenience features inside. Z71 is now offered on 2WD and 4WD 1500s, but not on 2500s.

Entertainment options include a Panasonic DVD player ($1,485 on LS, $1,295 on LT) with wireless headphones, auxiliary audio/video jacks and remote game plug-in. The touch-screen navigation system is optional as is an electric tilt-and-slide sunroof.

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