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Old 01-25-2010, 07:35 PM
cnshough cnshough is offline
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Default Changed rear diff fluid with 80w90. now what?

Took my 05 4x4 to have the rear differential fluid changed to hopefully stop the infamous rear end shudder. It worked, but the lube place used a synthetic 80w90 gear oil. Am I gonna have a problem because they didn't use the 75w140 like the manual calls for or will It be ok for another 15k miles?
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