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rear axle differential fluid change

28K views 8 replies 8 participants last post by  B-Body Builder 
At some point they started selling gaskets without the small slits in the middle. When you take down the the cover you see that they are covering two larger holes. The cover is molded to allow fluid to flow to these holes. Going without the holes will not kill your rear end right away, but if you don't do too many turns (like Highway Patrol) you will have under-lubed rear axle and eventually it will fail.
 
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