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Discussion Starter · #1 ·
So currently i'm running Amsoil 5W-30 synchromesh in my TR3650. I know what you're thinking already, "ughhh another f*cking transmission lube thread!"... When the transmission is warm, the shifting is smooth as one could expect. However when it's cold, that is a completely different story. I was reading up on the different fluids used in these wonderful vehicles of ours, and saw a lot of the T56 guys use synchromesh and add a friction modifier to it for smoother shifting. I was wondering if it would be safe to do the same for our cars? What kind of friction modifier would you get anyway? Like one for a limited slip rear or something of that nature?
 

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The Secret Sauce:

1.) 24oz (.75 quart) bottle of Lucas Tranny Fix
2.) 77.44oz (2.42 quarts) of Mobil1 Dextron III ATF fluid.
 

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Discussion Starter · #3 ·
I heard the secret sauce was secretly trash. I tried running ATF in my tranny once, and I could not stand the way it felt. Every shift was extremely notchy and it always felt like it was grinding. Synchromesh is soooo much better than ATF, but in the cold it's still a little notchy and sometimes grinds.
 

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