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Old 06-05-2013, 07:46 AM   #14
Th3Beast's Avatar
Drives: 2017 SS 1LE
Join Date: Feb 2013
Location: Riverview, FL
Posts: 249
Originally Posted by DangerZL1 View Post
Draining the lines and cooler would have no effect on the noise. The cooler is running transmission fluid and doesn't mix with the rear diff fluid.
Correct me if I'm wrong, but if there is a feed and return line going from the diff to the front of the car and ran thru a heat exchanger, than there will be old gear fluid in those lines and hx unless flushed.
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