Quote:
Originally Posted by YzGyz
I have around 36k miles on my nismo. It was REC by Seb From Specialty Z. He stated that if I was to drop my tranz and do the clutch, I might as well do the seal since it's the very accessible while the tranz is dropped. It looks easy but I have no data on how to do it.
YzGyz
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This sounds like someone who is quite familiar with a SBC and leaking of the rear main is common. The rear mains seal is easy to replace on a SBC especially when the tranny is removed. However, as pointed out already, the Z rear main seals are quite good and last a long time. It's also a replacement that is not forgiving if you make a slight screw up. My advice: "If it ain't broke, don't fix it."