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Busy day today for the Z71

Discussion in 'Chevy Silverado Forum (GMC Sierra)' started by liv2hunt, Apr 10, 2009.

  1. liv2hunt

    liv2hunt Member

    I bought this 2003 Z71 ext cab 5.3 L used last year it has 91K on it. so today I changed the plugs wires, PCV valve, fuel filter rear differential fluid, gasket and flushed the radiator. Tomorrow I will do the front differential and the transfer case. The trans is next week my buddy is helping with that. I put all OEM back in the truck except the rear I got Amsoil sever gear 75w90

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