Used 1999 GMC Sierra Classic 1500 SLT 3dr Extended Cab SB (5.0L 8cyl naturally aspired 4A) Consumer Reviews
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330000 @ uses no oil
rocky, 04/24/2010
GMC Sierra Classic 1500 SLT 3dr Extended Cab SB (5.0L 8cyl naturally aspired 4A)
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I have put over 300000 miles and never touched the inside of the motor. 5.3 i think. It gets 18 mpg. I have a 345 rear end, auto. Used both in construction work and pleasure. Has been an excellent pickup, and still looks good. Did replace transmission @ 235000.