I am finally getting around to extending the diff breathers on my ‘80. I have read a bunch of threads on this subject, most of them pretty old, which has been good, it would seem owners have been thinking about and experimenting with this for a while. I am wondering though if overtime one method has proved to be more effective/less problematic than another.
Initially my plan was to run isolated lines with filters attached from all cases to a high point in the engine compartment. Then I read somewhere that longer lines might cause increased condensation contamination. Does anyone have evidence that suggests there is truth to this? If so, what is the best alternative to the engine compartment for the rear diff?
Also, some have suggested venting the cases to the air filter housing. I like this idea for some reason, but I have read some concerns about vacuum, obstruction of airflow, etc... Has anyone tried this? If so, how did you go about it? Any problems? (pictures as always would be helpful)
I am also running a breather for the distributor but uncertain where to terminate it. Again, I like the air filter housing idea... bad idea?
I want to seal the distributor for obvious reasons, but I have also come across threads that suggest owners have run breathers for the starter and alt. Interested in opinions on how important running breathers to those components are, and if there are any other parts it would be a good idea to waterproof…