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I have 80k on my truck and i have never changed the diff oil. It gets checked every oil change, but its never low. Now my question is: Was a different rear-end put in the different model trucks, it seem that most of you with the problem have truck with the 4.8 set up. Now i have a Z-71 Off Road w/ a towing package and a 5.3. Is it possible that the rear ends in these trucks have stronger parts.
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99 Z-71 5.3 liter. Jet stage 2, volant cool air intake, flowmaster 40 series, billet grill, clear corners, chrome bed rails, pioneer cd player, Infinity Kappa speakers, silverstars. http://www.cardomain.com/ride/2094079
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