1999 GMC Sierra 1500 Consumer Review: Love the Z71 but mileage is ta

1999 GMC Sierra 1500 Extended Cab - Consumer Review

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Build Quality
Reliability Value
Love the Z71 but mileage is taking toll
By gmc2349 on


1999 GMC Sierra 1500 SLT 3dr Extended Cab 4WD LB


Just hit 90k and the repairs are starting to come in fast. Rear end needed to be replaced, along with front diff to be resealed. Transfer case just had to cleaned up from factory flaw. Front wheel bearings went out too all in under 10 months. That's about $3k in work done. Nothing else out there gets me excited as my Z71 SLT. Great truck, just reliability is becoming an issue at 100k.

Best Features

Truck looks sharp! Great comfort, its my home away from home. Hard to beat the roominess.

Worst Features

Factory flaws in transfer case causing the clunk, when put in gear from idle. Currently in shop getting the crank sensor replaced. Good grief, when should I cut my losses?
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