[Atf in a manual transmission]

I will definitely give everyone an update in the near future.

[Atf in a manual transmission]

I used sta lube GL-4. I finished the conversion about a week ago so the fluid that I drained out was fresh. I replaced it with Valvoline Dexron 3. I did a little research on the effects of atf on the synchros and didn't come up with much regarding damage/corrosion. I'm sure that a properly maintained trans with GL-4 will last a long time. I prefer to follow the factory recommended lubricants,  but just couldn't handle the stiff shifting for the first few miles and the atf completely eliminated that. 

[Atf in a manual transmission]

I just finished a 5 spd conversion on my '88. I noticed that the shifting was stiff and clunky especially when cold. I used 5.1 qts of 75-90 gl4 as recommended. I was told years ago from a mechanic friend that he uses atf/Dexron in most manual transmissions and gets excellent results. I tried it on an older BMW a long time ago and remembered that the results were noticeably improved.  So I dumped the gear oil out on my pathy today and filled it with Dexron. The results are NIGHT and DAY! Shifts like butter now. I'm actually amazed by the results.

[Unknown vacuum hose]

Vacuum break switch for turning off the cruise control when hit the brake pedal? Just a guess...