Hi folks, new to the forum... I'm looking at purchasing a 2005 Silverado 1500 4WD Ext Cab, Standard Box, Z71. The truck has a 5.3L Alum 310hp engine (L33?). Overall the truck appears to be in excellent shape. I was wondering if there is anything in particular I should pay close attention to as I look this vehicle over. I'm planning on having a mechanic go over the truck before I buy it and was wondering if anyone cared to share their comments regarding this model/year of the 1500. Thnx in advance, Looking forward to re-joing the Chevy Truck family after a 20 year absence.