2002 Chevrolet 1500HD 6.0 Liter - BlackBear Tune & Modified Air Box - 181,000 and running strong!
2002 GMC Yukon XL 5.3 Liter - Completely Stock (wifes truck) - 90,000 and still looks and runs like new!

2004 Chevrolet Silverado Ext cab z71. 70,000 miles. No mods......YET!!! Haha

104000, just read my sig for mods

174,862 - 1999 Chevy 2500 Crew Cab

1994 K1500 3" lift, flowmaster duals, 33" tires 165,000 miles

mileage
 

99 silverado 1500 extended cab, mark III conversion ,catback exhaust,corvette servo,bed cover. had 260000 before replacing motor and tranny. ran great ,had no problems other than a fuel pump. nothing wrong with it.just got a great deal on a new motor and tranny. couldn't pass it up . now it has 278000

2001 silverado 5.3l 1500 Z-71 @ 102k miles. K&N FIPK CAI, air raid TBS, superchips flashpaq, Level kit with 3" blocks, steel wheels by unique, 285 BFG all terrains, flowmaster 40 series axle dump, Brush guard, KC lights, tail light guards, hard wired valentine 1, coolant bypass, slotted front rotors.

2003 mods as listed below...81000 miles

2003 ext cab z71 all stock with 62,300 miles

2006 Chevy Silverado, CCSB, Z71, 3.42's, Black Bear Custom Tune, Banks CAI, Flowmaster SI/DO Cat back, Corvette Servo, 92000 miles, 20+MPG highway.