Year: 2007   
Model: LT Z71 package
Engine: 5.3     
Axle Gear Ratio: 3.73   
Suspension: Factory - Offroad
Tires: Bridgestone P275/55R20 Dueler H/L Alenza   
Wheels: Factory     
Modifications:Corsa Sport Exhaust, HID's, Dl3 mirror upgrade
Future Modifications:Baer alumnasport front and rear,

[img]

Year:   2003
Model:   Z-71
Engine:   5.3   
Axle Gear Ratio:  3.73
Suspension:   stock
Tires:   Cooper Discoverer STT 285 70 17
Wheels:    Stock 
Accessories: LOF,, Mag lite mod, Headlamp 4OH, Lap top cup holder install 
Future Modifications: $75 Bed slide, Sail panel LED's

Year: 2004
Model: 4X4
Engine: 5.3
Axle Gear Ratio: 3.73
Suspension: Factory
Tires: Cooper Discovery CTS 265/70/17
Wheels: Black Rock TypeD 909 17X8
Accessories: Amber DRL's, Black Billet Bowtie, Custom 1/4 panel Emblems, Hood deflector, Stainless fender trim, 800W inverter for portable PS3 and TV
Future Modifications: MSD wires, Tailgate letters, Stainless exhaust tip, Electric fan conversion

Year: 2003 
Model: Z71
Engine: 5.3   
Axle Gear Ratio: 3.73 
Suspension: Factory
Tires: 33" Firestone M/T's
Wheels: Factory     
Accessories: 2" Torsion keys, eBay Cold Air Intake, 6000k Low and Fog HID's, Cladding Decals, 15% front tint, 3% rear tint.
Future Modifications: Ported 706 heads, Mild Cam, Headers, Magnaflow Muffler, MSD wires, Tune, Body Lift

Year: Early 2005   
Model: Z71 LT   
Engine: Flex Fuel 5.3 V8     
Axle Gear Ratio: 3:42   
Suspension: Hotchkis sport package, Rancho Shocks   
Tires: 265/70/17 new every 18 months   
Wheels: Stock     
Accessories: Earnhardt SS cluster, Goodmark cowl hood, corsa sport exhaust, hotchkis sport package, hid head lights, amber led dlrs, escalade navigation sound system.   
Future Modifications: New 2010 or newer Avalanche